68
FINAL REPORT REPUBLIC OF BOTSWANA MINISTRY OF WORKS AND COMWUNICATIONS BOTSWANA - ZAMBIA ROAD PROJECT AID LOAN NO. 69o-T001 NATA - KAZUNGU-A I(OAD "PANDAMATENGA ACCESS ROAD CHOBE RIVER BY - PASS ROAD JULY 1978 Iq TA S TIPPET-m-S-ABBETT-MCCARFHY -STRATTON ENGINIEERSAND ARCHITECTS NEW YO:RK GABORONE

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Page 1: BOTSWANA ZAMBIA - pdf.usaid.gov

FINAL REPORT

REPUBLIC OF BOTSWANA MINISTRY OF WORKS AND COMWUNICATIONS

BOTSWANA - ZAMBIA ROAD PROJECT AID LOAN NO 69o-T001

NATA - KAZUNGU-A I(OAD PANDAMATENGA ACCESS ROAD CHOBE RIVER BY - PASS ROAD

JULY 1978

Iq

TA S TIPPET-m-S-ABBETT-MCCARFHY -STRATTON ENGINIEERSAND ARCHITECTS NEW YORK GABORONE

jharold
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FINAL REPORT

REPUBLIC OF BOTSWANA MINISTRY OF WORKS AND COMMUNICATIONS

BOTSWANA -ZAMBIA ROAD PROJECT AID LOAN NO 690-H-001

NATA - KAZUNGULA ROAD PANDAMATENGA ACCESS ROAD

CHOBE RIVER BY - PASS ROAD

JULY 1978

TAMS TIPPETTS-ABB ETT-McCARTHY-STRATTON

ENGINEERS AND ARCHITECTS NEW YORK GABORONE

TABLEOF CONTENTS

PAGE

I INTRODUCTION I A DESCRIPTION OF PROJECT 1 B FUNDING 2 C CONTRACTUAL ARRANGEMENTS 2 D MODIFICATIONS OF CONTRACT 2

II STAFFING 4

III TRAINING 4

IV CONSTRUCTION EQUIPMENT 4

V MATERIALS UTILIZED 5 A SOILS 5 B WATER 5

VI PROTECT HISTORY 5 A GENERAL 5 B SEQUENCE OF EVENTS 6 C PROJECT SCHEDULING AND DELAYS 9 D REMEDIAL ACTION 11 E PICTORIAL HISTORY 11

VII FINANCIAL SUMMARY 12

APPENDICES A CONSTRUCTION EQUIPMENT B SOILS AND MATERIALS C WATER WELL LOCATIONS D SYNOPSIS OF KEY CORRESPONDENCE E PROJECT PHOTOGRAPHS

LIST OF FIGURES

FIG 1 LOCATION MAP

FIG 2 CONSTRUCTION PROGRESS CHART

FIG B-i THRU B-4 MATERIALS UTILIZATION DIAGRAMS

FIG B-5 THRU B-13 AVERAGE GRADATION CURVES

UNITED STATES GOVERNMENT INSTRUCTIONS

Subject

2- a emo Final Report Botswana -Zambia Road Project

use routing symbols whenever possible

SENDER Use brief informal language Conserve space Forward original and one copy

RECEIVER Reply below the message keep one

copy return one copy

DATE OF MESSAGE Routing Symbol

TO

4 fiSENGR CampRSC No 8 Rm -507 SA-11I AID Washington DC 20523a

kl7

= dTUei

TITLE OF-ORIGINATO~R-D0

-FOLD-INITIAL MESSAGE

Chief Engineer Hl)S0 -FOLD--

Enclosed please Road Project

find 8 copies of the Final Report on Botswana - Zambia

REPLY MESSAGE

DATE OF REPLY Routing Symbol

From fDanald W Reilly USA=h to Kenya

PO Box 30261 Nairobi Kenya

101878 SIGNATURE OF REPLIER

Palmer Stearns

TITLE OF REPLIER

DSENGR

5027-104 1 TO BE RETAINED BY ADDRESSEE

Civil Engineer OPTIONAL FORM 27

JULY 1973 GSA FPMR (41 CFR) 101-116

3m ZAMBIA

I ANGOLA GULN - KASANEI

IGOI THE PROJECT

APANIDAMATENGA

R ES8A

BOSA AZAMIATR

B 0 T S A N APO

SERULI SELIBI

LEPXEPE AIG R 1ATINS DRIFT

TSHANER EP 0O F

MOLEPOLOLE

W bull PLOBATSE

l--

TSMABON

AMATuLASA LEGEND

PROJECT ROAD

bull MAIN ROADS -MAIN FEEDER ROADS

SECONDARY ROADS

-= --

BOTSWANA -ZAMBIA LOCATION MAP

FIGURE 1

ROAD

I INTRODUCTION

This is the final report on the construction of the Botswana-Zambia

Highway Project accomplished between April 25 1976 and January 19 1977

The report has been prepared in accordance with Guidelines for Preparing

Final Report dated September 30 1963 as issued by United States Agency for

International Development

A DESCRIPTION OF PROJECT

The Project consists of three sections of all-weather two-lane highshy

way with a total length of 370 kilometers including

1) The Nata-Kazungula section approximately 300 kilometers

in length beginning at Nata (See Figure 1) on the Francistown

Nata road and extending north west to the existing ferry cross shy

ing to Zambia on the Zambezi River at Kazungula

2) The Chobe River By-Pass section approximately 65 kilometers

in length beginning near Kazungula at Kilometer 2973 on the

Nata-Kazungula highway and extending south west skirting

the town of Kasane through the Chobe National Park to the

bridge across the Chobe River at Ngoma

3) The Pandamatena Access Road 5 kilometers in length

beginning at approximately Kilometer 198 on the Nata-Kazungula

highway and extending east to the village of Pandamatenga

on the Botswana-Rhodesia border

Construction work included clearing and grubbing of 1392 hectares

earthwork of approximately 1120000 cubic meters 3400 meters of culvert

1538800 cubic meters of base course and 457200 cubic meters of surface

course

The project design was performed under an agreement dated June 15

1971 for professional services between the Government of the Republic of

Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A

-1shy

B FUNDING

Funds for construction and construction supervision of the Project

were provided by loan agreements between the Government of the Republic of

Botswana and the United States of America acting through the Agency for

International Development (AID) The funds allocated were in the amount

of US $16600000 and were derived from the following sources

-U S $12600000 AID Loan No 690-H-001

-U S $ 4000000 First Amendment No 690-H-001A

C CONTRACTUAL ARRANGEMENTS

A contract for construction of the Botswana-Zambia Highway Project

was signed on Tune 26 1973 between the Government of the Republic of Botswana

and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc

a joint venture for an estimated total cost of construction of US $897784200

and Rand 316082500 The contract provided for completion of the project

by April 25 1976 a 975 day period from Notice to Proceed given on August 22

1973

There were two amendments to the contract both dealing with the condishy

tions and limits for Off-Shelf purchases

A contract for supervision of construction was entered into by the Government

of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in

the form of a supplement to the basic agreement for design of the project The

supplemental agreement was dated July 2 1973 Two amendments the first

dated September 29 1976 and the second dated July 26 1977 extended the

the time for completion and modified the original estimate for cost of inspection

services

D MODIFICATIONS OF CONTR4tCT

During the course of construction twelve Change Orders approved

and signed by the Government were issued These orders are briefly described

in Table 1

-2shy

5307

TABLE 1 CHANGE ORDERS

Change Order Cost No Purpose US$ RandPula

1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138

2 Additional air-conditioning units for staff housing 376898

3 Arrangements for monthly advance progress payments for permanent materials on site shy

4 Addition to the number of TAMS staff housing units 3900000 780600

5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601

6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344

7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517

LESS OVERPAYMENT (-)1661539

8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802

9 Escalation of minimum wage rates for field personnel 16022556

LESS OVERPAYMENT (-)125720

10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay

items 302 303 and 304

11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101

12 For minor realignment of roadway at Costs included in Nata contract pay items

TOTALS 4276898 95829606

-3shy

II STAFFING Excluding the mobilization and demobilization periods the major conshy

struction efforts took place during the calendar years 1974 1975 and 1976

A summary of the project staffing is presented in Table 2

TABLE 2

AverageMaximum Staffing Levels

Contractors Staff Engineers Staff

YearSource US Botswana TCN Code 941 US Botswana TCN

1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9

1976 15 290 3 40 4 13 7

Maximum 20 359 5 49 4 14 9

A paving specialist visited the Project in December 1973 and une 1974

in connection with proposals for upgrading the Project and again in March 1975

in connection with selection of material for the surface course

A partner from the Consultants home office made periodic visits to the

Project sites

III TRAINING

The Contractor trained Botswana Staff as drivers equipment operators

and oilers surveyors soils technicians mechanics helpers stewards and

maintenance workers

The Engineer trained Botswana Staff as soils technicians surveyors

drivers draftsmen and office clerical workers

IV CONSTRUCTION EQUIPMENT

In compliance with a requirement of the Contract Documents the Conshy

tractor presented a schedule of major plant and equipment to be used on the

Project Some adjustments were made to the listing as the job progressed

-4shy

Advances for the purchase of new items (materials construction plant

equipment tools spare parts maintenance supplies and buildings furniture

and equipment for the Contractors and Engineers camps) totaling U S

$124443700 and local currency Rand 225000 were made available to the

Contractor as provided for by the Contract Documents Reimbursement of

these advances were made in January1974 in accordance with the Contract

requirements

The major items of construction and shop equipment imported by the

Contractor for use on the project are listed in Appendix A

V MATERIALS UTILIZED

A SOILS

The formation consists of two layers the surface and base courses

placed on a compacted subgrade or embankment Base course materials were

obtained from 123 borrow pits along the roadway Surface course materials

which required processing were obtained from 9 borrow areas Appendix B

contains the Material Utilization Diagrams which show the sources of these

borrow materials and their utilization along the road Also included in Appendix

B are the Average Gradation Curves of the processed surface course materials

B WATER

Water for construction was obtained from 24 water wells drilled by the

Contractor Appendix C contains information on locations depth and yields

of the wells

VI PROTECT HISTORY

A GENERAL The engineers inspectors and materials technicians employed by TAMS

systematically inspected construction operations and sampled and tested mashy

terials being incorporated in the work to ensure compliance with contract reshy

quirements Each month a determination was made of the work accomplished

-5shy

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 2: BOTSWANA ZAMBIA - pdf.usaid.gov

FINAL REPORT

REPUBLIC OF BOTSWANA MINISTRY OF WORKS AND COMMUNICATIONS

BOTSWANA -ZAMBIA ROAD PROJECT AID LOAN NO 690-H-001

NATA - KAZUNGULA ROAD PANDAMATENGA ACCESS ROAD

CHOBE RIVER BY - PASS ROAD

JULY 1978

TAMS TIPPETTS-ABB ETT-McCARTHY-STRATTON

ENGINEERS AND ARCHITECTS NEW YORK GABORONE

TABLEOF CONTENTS

PAGE

I INTRODUCTION I A DESCRIPTION OF PROJECT 1 B FUNDING 2 C CONTRACTUAL ARRANGEMENTS 2 D MODIFICATIONS OF CONTRACT 2

II STAFFING 4

III TRAINING 4

IV CONSTRUCTION EQUIPMENT 4

V MATERIALS UTILIZED 5 A SOILS 5 B WATER 5

VI PROTECT HISTORY 5 A GENERAL 5 B SEQUENCE OF EVENTS 6 C PROJECT SCHEDULING AND DELAYS 9 D REMEDIAL ACTION 11 E PICTORIAL HISTORY 11

VII FINANCIAL SUMMARY 12

APPENDICES A CONSTRUCTION EQUIPMENT B SOILS AND MATERIALS C WATER WELL LOCATIONS D SYNOPSIS OF KEY CORRESPONDENCE E PROJECT PHOTOGRAPHS

LIST OF FIGURES

FIG 1 LOCATION MAP

FIG 2 CONSTRUCTION PROGRESS CHART

FIG B-i THRU B-4 MATERIALS UTILIZATION DIAGRAMS

FIG B-5 THRU B-13 AVERAGE GRADATION CURVES

UNITED STATES GOVERNMENT INSTRUCTIONS

Subject

2- a emo Final Report Botswana -Zambia Road Project

use routing symbols whenever possible

SENDER Use brief informal language Conserve space Forward original and one copy

RECEIVER Reply below the message keep one

copy return one copy

DATE OF MESSAGE Routing Symbol

TO

4 fiSENGR CampRSC No 8 Rm -507 SA-11I AID Washington DC 20523a

kl7

= dTUei

TITLE OF-ORIGINATO~R-D0

-FOLD-INITIAL MESSAGE

Chief Engineer Hl)S0 -FOLD--

Enclosed please Road Project

find 8 copies of the Final Report on Botswana - Zambia

REPLY MESSAGE

DATE OF REPLY Routing Symbol

From fDanald W Reilly USA=h to Kenya

PO Box 30261 Nairobi Kenya

101878 SIGNATURE OF REPLIER

Palmer Stearns

TITLE OF REPLIER

DSENGR

5027-104 1 TO BE RETAINED BY ADDRESSEE

Civil Engineer OPTIONAL FORM 27

JULY 1973 GSA FPMR (41 CFR) 101-116

3m ZAMBIA

I ANGOLA GULN - KASANEI

IGOI THE PROJECT

APANIDAMATENGA

R ES8A

BOSA AZAMIATR

B 0 T S A N APO

SERULI SELIBI

LEPXEPE AIG R 1ATINS DRIFT

TSHANER EP 0O F

MOLEPOLOLE

W bull PLOBATSE

l--

TSMABON

AMATuLASA LEGEND

PROJECT ROAD

bull MAIN ROADS -MAIN FEEDER ROADS

SECONDARY ROADS

-= --

BOTSWANA -ZAMBIA LOCATION MAP

FIGURE 1

ROAD

I INTRODUCTION

This is the final report on the construction of the Botswana-Zambia

Highway Project accomplished between April 25 1976 and January 19 1977

The report has been prepared in accordance with Guidelines for Preparing

Final Report dated September 30 1963 as issued by United States Agency for

International Development

A DESCRIPTION OF PROJECT

The Project consists of three sections of all-weather two-lane highshy

way with a total length of 370 kilometers including

1) The Nata-Kazungula section approximately 300 kilometers

in length beginning at Nata (See Figure 1) on the Francistown

Nata road and extending north west to the existing ferry cross shy

ing to Zambia on the Zambezi River at Kazungula

2) The Chobe River By-Pass section approximately 65 kilometers

in length beginning near Kazungula at Kilometer 2973 on the

Nata-Kazungula highway and extending south west skirting

the town of Kasane through the Chobe National Park to the

bridge across the Chobe River at Ngoma

3) The Pandamatena Access Road 5 kilometers in length

beginning at approximately Kilometer 198 on the Nata-Kazungula

highway and extending east to the village of Pandamatenga

on the Botswana-Rhodesia border

Construction work included clearing and grubbing of 1392 hectares

earthwork of approximately 1120000 cubic meters 3400 meters of culvert

1538800 cubic meters of base course and 457200 cubic meters of surface

course

The project design was performed under an agreement dated June 15

1971 for professional services between the Government of the Republic of

Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A

-1shy

B FUNDING

Funds for construction and construction supervision of the Project

were provided by loan agreements between the Government of the Republic of

Botswana and the United States of America acting through the Agency for

International Development (AID) The funds allocated were in the amount

of US $16600000 and were derived from the following sources

-U S $12600000 AID Loan No 690-H-001

-U S $ 4000000 First Amendment No 690-H-001A

C CONTRACTUAL ARRANGEMENTS

A contract for construction of the Botswana-Zambia Highway Project

was signed on Tune 26 1973 between the Government of the Republic of Botswana

and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc

a joint venture for an estimated total cost of construction of US $897784200

and Rand 316082500 The contract provided for completion of the project

by April 25 1976 a 975 day period from Notice to Proceed given on August 22

1973

There were two amendments to the contract both dealing with the condishy

tions and limits for Off-Shelf purchases

A contract for supervision of construction was entered into by the Government

of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in

the form of a supplement to the basic agreement for design of the project The

supplemental agreement was dated July 2 1973 Two amendments the first

dated September 29 1976 and the second dated July 26 1977 extended the

the time for completion and modified the original estimate for cost of inspection

services

D MODIFICATIONS OF CONTR4tCT

During the course of construction twelve Change Orders approved

and signed by the Government were issued These orders are briefly described

in Table 1

-2shy

5307

TABLE 1 CHANGE ORDERS

Change Order Cost No Purpose US$ RandPula

1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138

2 Additional air-conditioning units for staff housing 376898

3 Arrangements for monthly advance progress payments for permanent materials on site shy

4 Addition to the number of TAMS staff housing units 3900000 780600

5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601

6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344

7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517

LESS OVERPAYMENT (-)1661539

8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802

9 Escalation of minimum wage rates for field personnel 16022556

LESS OVERPAYMENT (-)125720

10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay

items 302 303 and 304

11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101

12 For minor realignment of roadway at Costs included in Nata contract pay items

TOTALS 4276898 95829606

-3shy

II STAFFING Excluding the mobilization and demobilization periods the major conshy

struction efforts took place during the calendar years 1974 1975 and 1976

A summary of the project staffing is presented in Table 2

TABLE 2

AverageMaximum Staffing Levels

Contractors Staff Engineers Staff

YearSource US Botswana TCN Code 941 US Botswana TCN

1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9

1976 15 290 3 40 4 13 7

Maximum 20 359 5 49 4 14 9

A paving specialist visited the Project in December 1973 and une 1974

in connection with proposals for upgrading the Project and again in March 1975

in connection with selection of material for the surface course

A partner from the Consultants home office made periodic visits to the

Project sites

III TRAINING

The Contractor trained Botswana Staff as drivers equipment operators

and oilers surveyors soils technicians mechanics helpers stewards and

maintenance workers

The Engineer trained Botswana Staff as soils technicians surveyors

drivers draftsmen and office clerical workers

IV CONSTRUCTION EQUIPMENT

In compliance with a requirement of the Contract Documents the Conshy

tractor presented a schedule of major plant and equipment to be used on the

Project Some adjustments were made to the listing as the job progressed

-4shy

Advances for the purchase of new items (materials construction plant

equipment tools spare parts maintenance supplies and buildings furniture

and equipment for the Contractors and Engineers camps) totaling U S

$124443700 and local currency Rand 225000 were made available to the

Contractor as provided for by the Contract Documents Reimbursement of

these advances were made in January1974 in accordance with the Contract

requirements

The major items of construction and shop equipment imported by the

Contractor for use on the project are listed in Appendix A

V MATERIALS UTILIZED

A SOILS

The formation consists of two layers the surface and base courses

placed on a compacted subgrade or embankment Base course materials were

obtained from 123 borrow pits along the roadway Surface course materials

which required processing were obtained from 9 borrow areas Appendix B

contains the Material Utilization Diagrams which show the sources of these

borrow materials and their utilization along the road Also included in Appendix

B are the Average Gradation Curves of the processed surface course materials

B WATER

Water for construction was obtained from 24 water wells drilled by the

Contractor Appendix C contains information on locations depth and yields

of the wells

VI PROTECT HISTORY

A GENERAL The engineers inspectors and materials technicians employed by TAMS

systematically inspected construction operations and sampled and tested mashy

terials being incorporated in the work to ensure compliance with contract reshy

quirements Each month a determination was made of the work accomplished

-5shy

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 3: BOTSWANA ZAMBIA - pdf.usaid.gov

TABLEOF CONTENTS

PAGE

I INTRODUCTION I A DESCRIPTION OF PROJECT 1 B FUNDING 2 C CONTRACTUAL ARRANGEMENTS 2 D MODIFICATIONS OF CONTRACT 2

II STAFFING 4

III TRAINING 4

IV CONSTRUCTION EQUIPMENT 4

V MATERIALS UTILIZED 5 A SOILS 5 B WATER 5

VI PROTECT HISTORY 5 A GENERAL 5 B SEQUENCE OF EVENTS 6 C PROJECT SCHEDULING AND DELAYS 9 D REMEDIAL ACTION 11 E PICTORIAL HISTORY 11

VII FINANCIAL SUMMARY 12

APPENDICES A CONSTRUCTION EQUIPMENT B SOILS AND MATERIALS C WATER WELL LOCATIONS D SYNOPSIS OF KEY CORRESPONDENCE E PROJECT PHOTOGRAPHS

LIST OF FIGURES

FIG 1 LOCATION MAP

FIG 2 CONSTRUCTION PROGRESS CHART

FIG B-i THRU B-4 MATERIALS UTILIZATION DIAGRAMS

FIG B-5 THRU B-13 AVERAGE GRADATION CURVES

UNITED STATES GOVERNMENT INSTRUCTIONS

Subject

2- a emo Final Report Botswana -Zambia Road Project

use routing symbols whenever possible

SENDER Use brief informal language Conserve space Forward original and one copy

RECEIVER Reply below the message keep one

copy return one copy

DATE OF MESSAGE Routing Symbol

TO

4 fiSENGR CampRSC No 8 Rm -507 SA-11I AID Washington DC 20523a

kl7

= dTUei

TITLE OF-ORIGINATO~R-D0

-FOLD-INITIAL MESSAGE

Chief Engineer Hl)S0 -FOLD--

Enclosed please Road Project

find 8 copies of the Final Report on Botswana - Zambia

REPLY MESSAGE

DATE OF REPLY Routing Symbol

From fDanald W Reilly USA=h to Kenya

PO Box 30261 Nairobi Kenya

101878 SIGNATURE OF REPLIER

Palmer Stearns

TITLE OF REPLIER

DSENGR

5027-104 1 TO BE RETAINED BY ADDRESSEE

Civil Engineer OPTIONAL FORM 27

JULY 1973 GSA FPMR (41 CFR) 101-116

3m ZAMBIA

I ANGOLA GULN - KASANEI

IGOI THE PROJECT

APANIDAMATENGA

R ES8A

BOSA AZAMIATR

B 0 T S A N APO

SERULI SELIBI

LEPXEPE AIG R 1ATINS DRIFT

TSHANER EP 0O F

MOLEPOLOLE

W bull PLOBATSE

l--

TSMABON

AMATuLASA LEGEND

PROJECT ROAD

bull MAIN ROADS -MAIN FEEDER ROADS

SECONDARY ROADS

-= --

BOTSWANA -ZAMBIA LOCATION MAP

FIGURE 1

ROAD

I INTRODUCTION

This is the final report on the construction of the Botswana-Zambia

Highway Project accomplished between April 25 1976 and January 19 1977

The report has been prepared in accordance with Guidelines for Preparing

Final Report dated September 30 1963 as issued by United States Agency for

International Development

A DESCRIPTION OF PROJECT

The Project consists of three sections of all-weather two-lane highshy

way with a total length of 370 kilometers including

1) The Nata-Kazungula section approximately 300 kilometers

in length beginning at Nata (See Figure 1) on the Francistown

Nata road and extending north west to the existing ferry cross shy

ing to Zambia on the Zambezi River at Kazungula

2) The Chobe River By-Pass section approximately 65 kilometers

in length beginning near Kazungula at Kilometer 2973 on the

Nata-Kazungula highway and extending south west skirting

the town of Kasane through the Chobe National Park to the

bridge across the Chobe River at Ngoma

3) The Pandamatena Access Road 5 kilometers in length

beginning at approximately Kilometer 198 on the Nata-Kazungula

highway and extending east to the village of Pandamatenga

on the Botswana-Rhodesia border

Construction work included clearing and grubbing of 1392 hectares

earthwork of approximately 1120000 cubic meters 3400 meters of culvert

1538800 cubic meters of base course and 457200 cubic meters of surface

course

The project design was performed under an agreement dated June 15

1971 for professional services between the Government of the Republic of

Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A

-1shy

B FUNDING

Funds for construction and construction supervision of the Project

were provided by loan agreements between the Government of the Republic of

Botswana and the United States of America acting through the Agency for

International Development (AID) The funds allocated were in the amount

of US $16600000 and were derived from the following sources

-U S $12600000 AID Loan No 690-H-001

-U S $ 4000000 First Amendment No 690-H-001A

C CONTRACTUAL ARRANGEMENTS

A contract for construction of the Botswana-Zambia Highway Project

was signed on Tune 26 1973 between the Government of the Republic of Botswana

and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc

a joint venture for an estimated total cost of construction of US $897784200

and Rand 316082500 The contract provided for completion of the project

by April 25 1976 a 975 day period from Notice to Proceed given on August 22

1973

There were two amendments to the contract both dealing with the condishy

tions and limits for Off-Shelf purchases

A contract for supervision of construction was entered into by the Government

of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in

the form of a supplement to the basic agreement for design of the project The

supplemental agreement was dated July 2 1973 Two amendments the first

dated September 29 1976 and the second dated July 26 1977 extended the

the time for completion and modified the original estimate for cost of inspection

services

D MODIFICATIONS OF CONTR4tCT

During the course of construction twelve Change Orders approved

and signed by the Government were issued These orders are briefly described

in Table 1

-2shy

5307

TABLE 1 CHANGE ORDERS

Change Order Cost No Purpose US$ RandPula

1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138

2 Additional air-conditioning units for staff housing 376898

3 Arrangements for monthly advance progress payments for permanent materials on site shy

4 Addition to the number of TAMS staff housing units 3900000 780600

5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601

6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344

7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517

LESS OVERPAYMENT (-)1661539

8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802

9 Escalation of minimum wage rates for field personnel 16022556

LESS OVERPAYMENT (-)125720

10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay

items 302 303 and 304

11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101

12 For minor realignment of roadway at Costs included in Nata contract pay items

TOTALS 4276898 95829606

-3shy

II STAFFING Excluding the mobilization and demobilization periods the major conshy

struction efforts took place during the calendar years 1974 1975 and 1976

A summary of the project staffing is presented in Table 2

TABLE 2

AverageMaximum Staffing Levels

Contractors Staff Engineers Staff

YearSource US Botswana TCN Code 941 US Botswana TCN

1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9

1976 15 290 3 40 4 13 7

Maximum 20 359 5 49 4 14 9

A paving specialist visited the Project in December 1973 and une 1974

in connection with proposals for upgrading the Project and again in March 1975

in connection with selection of material for the surface course

A partner from the Consultants home office made periodic visits to the

Project sites

III TRAINING

The Contractor trained Botswana Staff as drivers equipment operators

and oilers surveyors soils technicians mechanics helpers stewards and

maintenance workers

The Engineer trained Botswana Staff as soils technicians surveyors

drivers draftsmen and office clerical workers

IV CONSTRUCTION EQUIPMENT

In compliance with a requirement of the Contract Documents the Conshy

tractor presented a schedule of major plant and equipment to be used on the

Project Some adjustments were made to the listing as the job progressed

-4shy

Advances for the purchase of new items (materials construction plant

equipment tools spare parts maintenance supplies and buildings furniture

and equipment for the Contractors and Engineers camps) totaling U S

$124443700 and local currency Rand 225000 were made available to the

Contractor as provided for by the Contract Documents Reimbursement of

these advances were made in January1974 in accordance with the Contract

requirements

The major items of construction and shop equipment imported by the

Contractor for use on the project are listed in Appendix A

V MATERIALS UTILIZED

A SOILS

The formation consists of two layers the surface and base courses

placed on a compacted subgrade or embankment Base course materials were

obtained from 123 borrow pits along the roadway Surface course materials

which required processing were obtained from 9 borrow areas Appendix B

contains the Material Utilization Diagrams which show the sources of these

borrow materials and their utilization along the road Also included in Appendix

B are the Average Gradation Curves of the processed surface course materials

B WATER

Water for construction was obtained from 24 water wells drilled by the

Contractor Appendix C contains information on locations depth and yields

of the wells

VI PROTECT HISTORY

A GENERAL The engineers inspectors and materials technicians employed by TAMS

systematically inspected construction operations and sampled and tested mashy

terials being incorporated in the work to ensure compliance with contract reshy

quirements Each month a determination was made of the work accomplished

-5shy

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 4: BOTSWANA ZAMBIA - pdf.usaid.gov

UNITED STATES GOVERNMENT INSTRUCTIONS

Subject

2- a emo Final Report Botswana -Zambia Road Project

use routing symbols whenever possible

SENDER Use brief informal language Conserve space Forward original and one copy

RECEIVER Reply below the message keep one

copy return one copy

DATE OF MESSAGE Routing Symbol

TO

4 fiSENGR CampRSC No 8 Rm -507 SA-11I AID Washington DC 20523a

kl7

= dTUei

TITLE OF-ORIGINATO~R-D0

-FOLD-INITIAL MESSAGE

Chief Engineer Hl)S0 -FOLD--

Enclosed please Road Project

find 8 copies of the Final Report on Botswana - Zambia

REPLY MESSAGE

DATE OF REPLY Routing Symbol

From fDanald W Reilly USA=h to Kenya

PO Box 30261 Nairobi Kenya

101878 SIGNATURE OF REPLIER

Palmer Stearns

TITLE OF REPLIER

DSENGR

5027-104 1 TO BE RETAINED BY ADDRESSEE

Civil Engineer OPTIONAL FORM 27

JULY 1973 GSA FPMR (41 CFR) 101-116

3m ZAMBIA

I ANGOLA GULN - KASANEI

IGOI THE PROJECT

APANIDAMATENGA

R ES8A

BOSA AZAMIATR

B 0 T S A N APO

SERULI SELIBI

LEPXEPE AIG R 1ATINS DRIFT

TSHANER EP 0O F

MOLEPOLOLE

W bull PLOBATSE

l--

TSMABON

AMATuLASA LEGEND

PROJECT ROAD

bull MAIN ROADS -MAIN FEEDER ROADS

SECONDARY ROADS

-= --

BOTSWANA -ZAMBIA LOCATION MAP

FIGURE 1

ROAD

I INTRODUCTION

This is the final report on the construction of the Botswana-Zambia

Highway Project accomplished between April 25 1976 and January 19 1977

The report has been prepared in accordance with Guidelines for Preparing

Final Report dated September 30 1963 as issued by United States Agency for

International Development

A DESCRIPTION OF PROJECT

The Project consists of three sections of all-weather two-lane highshy

way with a total length of 370 kilometers including

1) The Nata-Kazungula section approximately 300 kilometers

in length beginning at Nata (See Figure 1) on the Francistown

Nata road and extending north west to the existing ferry cross shy

ing to Zambia on the Zambezi River at Kazungula

2) The Chobe River By-Pass section approximately 65 kilometers

in length beginning near Kazungula at Kilometer 2973 on the

Nata-Kazungula highway and extending south west skirting

the town of Kasane through the Chobe National Park to the

bridge across the Chobe River at Ngoma

3) The Pandamatena Access Road 5 kilometers in length

beginning at approximately Kilometer 198 on the Nata-Kazungula

highway and extending east to the village of Pandamatenga

on the Botswana-Rhodesia border

Construction work included clearing and grubbing of 1392 hectares

earthwork of approximately 1120000 cubic meters 3400 meters of culvert

1538800 cubic meters of base course and 457200 cubic meters of surface

course

The project design was performed under an agreement dated June 15

1971 for professional services between the Government of the Republic of

Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A

-1shy

B FUNDING

Funds for construction and construction supervision of the Project

were provided by loan agreements between the Government of the Republic of

Botswana and the United States of America acting through the Agency for

International Development (AID) The funds allocated were in the amount

of US $16600000 and were derived from the following sources

-U S $12600000 AID Loan No 690-H-001

-U S $ 4000000 First Amendment No 690-H-001A

C CONTRACTUAL ARRANGEMENTS

A contract for construction of the Botswana-Zambia Highway Project

was signed on Tune 26 1973 between the Government of the Republic of Botswana

and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc

a joint venture for an estimated total cost of construction of US $897784200

and Rand 316082500 The contract provided for completion of the project

by April 25 1976 a 975 day period from Notice to Proceed given on August 22

1973

There were two amendments to the contract both dealing with the condishy

tions and limits for Off-Shelf purchases

A contract for supervision of construction was entered into by the Government

of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in

the form of a supplement to the basic agreement for design of the project The

supplemental agreement was dated July 2 1973 Two amendments the first

dated September 29 1976 and the second dated July 26 1977 extended the

the time for completion and modified the original estimate for cost of inspection

services

D MODIFICATIONS OF CONTR4tCT

During the course of construction twelve Change Orders approved

and signed by the Government were issued These orders are briefly described

in Table 1

-2shy

5307

TABLE 1 CHANGE ORDERS

Change Order Cost No Purpose US$ RandPula

1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138

2 Additional air-conditioning units for staff housing 376898

3 Arrangements for monthly advance progress payments for permanent materials on site shy

4 Addition to the number of TAMS staff housing units 3900000 780600

5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601

6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344

7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517

LESS OVERPAYMENT (-)1661539

8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802

9 Escalation of minimum wage rates for field personnel 16022556

LESS OVERPAYMENT (-)125720

10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay

items 302 303 and 304

11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101

12 For minor realignment of roadway at Costs included in Nata contract pay items

TOTALS 4276898 95829606

-3shy

II STAFFING Excluding the mobilization and demobilization periods the major conshy

struction efforts took place during the calendar years 1974 1975 and 1976

A summary of the project staffing is presented in Table 2

TABLE 2

AverageMaximum Staffing Levels

Contractors Staff Engineers Staff

YearSource US Botswana TCN Code 941 US Botswana TCN

1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9

1976 15 290 3 40 4 13 7

Maximum 20 359 5 49 4 14 9

A paving specialist visited the Project in December 1973 and une 1974

in connection with proposals for upgrading the Project and again in March 1975

in connection with selection of material for the surface course

A partner from the Consultants home office made periodic visits to the

Project sites

III TRAINING

The Contractor trained Botswana Staff as drivers equipment operators

and oilers surveyors soils technicians mechanics helpers stewards and

maintenance workers

The Engineer trained Botswana Staff as soils technicians surveyors

drivers draftsmen and office clerical workers

IV CONSTRUCTION EQUIPMENT

In compliance with a requirement of the Contract Documents the Conshy

tractor presented a schedule of major plant and equipment to be used on the

Project Some adjustments were made to the listing as the job progressed

-4shy

Advances for the purchase of new items (materials construction plant

equipment tools spare parts maintenance supplies and buildings furniture

and equipment for the Contractors and Engineers camps) totaling U S

$124443700 and local currency Rand 225000 were made available to the

Contractor as provided for by the Contract Documents Reimbursement of

these advances were made in January1974 in accordance with the Contract

requirements

The major items of construction and shop equipment imported by the

Contractor for use on the project are listed in Appendix A

V MATERIALS UTILIZED

A SOILS

The formation consists of two layers the surface and base courses

placed on a compacted subgrade or embankment Base course materials were

obtained from 123 borrow pits along the roadway Surface course materials

which required processing were obtained from 9 borrow areas Appendix B

contains the Material Utilization Diagrams which show the sources of these

borrow materials and their utilization along the road Also included in Appendix

B are the Average Gradation Curves of the processed surface course materials

B WATER

Water for construction was obtained from 24 water wells drilled by the

Contractor Appendix C contains information on locations depth and yields

of the wells

VI PROTECT HISTORY

A GENERAL The engineers inspectors and materials technicians employed by TAMS

systematically inspected construction operations and sampled and tested mashy

terials being incorporated in the work to ensure compliance with contract reshy

quirements Each month a determination was made of the work accomplished

-5shy

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 5: BOTSWANA ZAMBIA - pdf.usaid.gov

3m ZAMBIA

I ANGOLA GULN - KASANEI

IGOI THE PROJECT

APANIDAMATENGA

R ES8A

BOSA AZAMIATR

B 0 T S A N APO

SERULI SELIBI

LEPXEPE AIG R 1ATINS DRIFT

TSHANER EP 0O F

MOLEPOLOLE

W bull PLOBATSE

l--

TSMABON

AMATuLASA LEGEND

PROJECT ROAD

bull MAIN ROADS -MAIN FEEDER ROADS

SECONDARY ROADS

-= --

BOTSWANA -ZAMBIA LOCATION MAP

FIGURE 1

ROAD

I INTRODUCTION

This is the final report on the construction of the Botswana-Zambia

Highway Project accomplished between April 25 1976 and January 19 1977

The report has been prepared in accordance with Guidelines for Preparing

Final Report dated September 30 1963 as issued by United States Agency for

International Development

A DESCRIPTION OF PROJECT

The Project consists of three sections of all-weather two-lane highshy

way with a total length of 370 kilometers including

1) The Nata-Kazungula section approximately 300 kilometers

in length beginning at Nata (See Figure 1) on the Francistown

Nata road and extending north west to the existing ferry cross shy

ing to Zambia on the Zambezi River at Kazungula

2) The Chobe River By-Pass section approximately 65 kilometers

in length beginning near Kazungula at Kilometer 2973 on the

Nata-Kazungula highway and extending south west skirting

the town of Kasane through the Chobe National Park to the

bridge across the Chobe River at Ngoma

3) The Pandamatena Access Road 5 kilometers in length

beginning at approximately Kilometer 198 on the Nata-Kazungula

highway and extending east to the village of Pandamatenga

on the Botswana-Rhodesia border

Construction work included clearing and grubbing of 1392 hectares

earthwork of approximately 1120000 cubic meters 3400 meters of culvert

1538800 cubic meters of base course and 457200 cubic meters of surface

course

The project design was performed under an agreement dated June 15

1971 for professional services between the Government of the Republic of

Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A

-1shy

B FUNDING

Funds for construction and construction supervision of the Project

were provided by loan agreements between the Government of the Republic of

Botswana and the United States of America acting through the Agency for

International Development (AID) The funds allocated were in the amount

of US $16600000 and were derived from the following sources

-U S $12600000 AID Loan No 690-H-001

-U S $ 4000000 First Amendment No 690-H-001A

C CONTRACTUAL ARRANGEMENTS

A contract for construction of the Botswana-Zambia Highway Project

was signed on Tune 26 1973 between the Government of the Republic of Botswana

and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc

a joint venture for an estimated total cost of construction of US $897784200

and Rand 316082500 The contract provided for completion of the project

by April 25 1976 a 975 day period from Notice to Proceed given on August 22

1973

There were two amendments to the contract both dealing with the condishy

tions and limits for Off-Shelf purchases

A contract for supervision of construction was entered into by the Government

of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in

the form of a supplement to the basic agreement for design of the project The

supplemental agreement was dated July 2 1973 Two amendments the first

dated September 29 1976 and the second dated July 26 1977 extended the

the time for completion and modified the original estimate for cost of inspection

services

D MODIFICATIONS OF CONTR4tCT

During the course of construction twelve Change Orders approved

and signed by the Government were issued These orders are briefly described

in Table 1

-2shy

5307

TABLE 1 CHANGE ORDERS

Change Order Cost No Purpose US$ RandPula

1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138

2 Additional air-conditioning units for staff housing 376898

3 Arrangements for monthly advance progress payments for permanent materials on site shy

4 Addition to the number of TAMS staff housing units 3900000 780600

5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601

6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344

7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517

LESS OVERPAYMENT (-)1661539

8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802

9 Escalation of minimum wage rates for field personnel 16022556

LESS OVERPAYMENT (-)125720

10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay

items 302 303 and 304

11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101

12 For minor realignment of roadway at Costs included in Nata contract pay items

TOTALS 4276898 95829606

-3shy

II STAFFING Excluding the mobilization and demobilization periods the major conshy

struction efforts took place during the calendar years 1974 1975 and 1976

A summary of the project staffing is presented in Table 2

TABLE 2

AverageMaximum Staffing Levels

Contractors Staff Engineers Staff

YearSource US Botswana TCN Code 941 US Botswana TCN

1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9

1976 15 290 3 40 4 13 7

Maximum 20 359 5 49 4 14 9

A paving specialist visited the Project in December 1973 and une 1974

in connection with proposals for upgrading the Project and again in March 1975

in connection with selection of material for the surface course

A partner from the Consultants home office made periodic visits to the

Project sites

III TRAINING

The Contractor trained Botswana Staff as drivers equipment operators

and oilers surveyors soils technicians mechanics helpers stewards and

maintenance workers

The Engineer trained Botswana Staff as soils technicians surveyors

drivers draftsmen and office clerical workers

IV CONSTRUCTION EQUIPMENT

In compliance with a requirement of the Contract Documents the Conshy

tractor presented a schedule of major plant and equipment to be used on the

Project Some adjustments were made to the listing as the job progressed

-4shy

Advances for the purchase of new items (materials construction plant

equipment tools spare parts maintenance supplies and buildings furniture

and equipment for the Contractors and Engineers camps) totaling U S

$124443700 and local currency Rand 225000 were made available to the

Contractor as provided for by the Contract Documents Reimbursement of

these advances were made in January1974 in accordance with the Contract

requirements

The major items of construction and shop equipment imported by the

Contractor for use on the project are listed in Appendix A

V MATERIALS UTILIZED

A SOILS

The formation consists of two layers the surface and base courses

placed on a compacted subgrade or embankment Base course materials were

obtained from 123 borrow pits along the roadway Surface course materials

which required processing were obtained from 9 borrow areas Appendix B

contains the Material Utilization Diagrams which show the sources of these

borrow materials and their utilization along the road Also included in Appendix

B are the Average Gradation Curves of the processed surface course materials

B WATER

Water for construction was obtained from 24 water wells drilled by the

Contractor Appendix C contains information on locations depth and yields

of the wells

VI PROTECT HISTORY

A GENERAL The engineers inspectors and materials technicians employed by TAMS

systematically inspected construction operations and sampled and tested mashy

terials being incorporated in the work to ensure compliance with contract reshy

quirements Each month a determination was made of the work accomplished

-5shy

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 6: BOTSWANA ZAMBIA - pdf.usaid.gov

I INTRODUCTION

This is the final report on the construction of the Botswana-Zambia

Highway Project accomplished between April 25 1976 and January 19 1977

The report has been prepared in accordance with Guidelines for Preparing

Final Report dated September 30 1963 as issued by United States Agency for

International Development

A DESCRIPTION OF PROJECT

The Project consists of three sections of all-weather two-lane highshy

way with a total length of 370 kilometers including

1) The Nata-Kazungula section approximately 300 kilometers

in length beginning at Nata (See Figure 1) on the Francistown

Nata road and extending north west to the existing ferry cross shy

ing to Zambia on the Zambezi River at Kazungula

2) The Chobe River By-Pass section approximately 65 kilometers

in length beginning near Kazungula at Kilometer 2973 on the

Nata-Kazungula highway and extending south west skirting

the town of Kasane through the Chobe National Park to the

bridge across the Chobe River at Ngoma

3) The Pandamatena Access Road 5 kilometers in length

beginning at approximately Kilometer 198 on the Nata-Kazungula

highway and extending east to the village of Pandamatenga

on the Botswana-Rhodesia border

Construction work included clearing and grubbing of 1392 hectares

earthwork of approximately 1120000 cubic meters 3400 meters of culvert

1538800 cubic meters of base course and 457200 cubic meters of surface

course

The project design was performed under an agreement dated June 15

1971 for professional services between the Government of the Republic of

Botswana and Tippetts-Abbett-McCarthy-Stratton of New York U S A

-1shy

B FUNDING

Funds for construction and construction supervision of the Project

were provided by loan agreements between the Government of the Republic of

Botswana and the United States of America acting through the Agency for

International Development (AID) The funds allocated were in the amount

of US $16600000 and were derived from the following sources

-U S $12600000 AID Loan No 690-H-001

-U S $ 4000000 First Amendment No 690-H-001A

C CONTRACTUAL ARRANGEMENTS

A contract for construction of the Botswana-Zambia Highway Project

was signed on Tune 26 1973 between the Government of the Republic of Botswana

and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc

a joint venture for an estimated total cost of construction of US $897784200

and Rand 316082500 The contract provided for completion of the project

by April 25 1976 a 975 day period from Notice to Proceed given on August 22

1973

There were two amendments to the contract both dealing with the condishy

tions and limits for Off-Shelf purchases

A contract for supervision of construction was entered into by the Government

of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in

the form of a supplement to the basic agreement for design of the project The

supplemental agreement was dated July 2 1973 Two amendments the first

dated September 29 1976 and the second dated July 26 1977 extended the

the time for completion and modified the original estimate for cost of inspection

services

D MODIFICATIONS OF CONTR4tCT

During the course of construction twelve Change Orders approved

and signed by the Government were issued These orders are briefly described

in Table 1

-2shy

5307

TABLE 1 CHANGE ORDERS

Change Order Cost No Purpose US$ RandPula

1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138

2 Additional air-conditioning units for staff housing 376898

3 Arrangements for monthly advance progress payments for permanent materials on site shy

4 Addition to the number of TAMS staff housing units 3900000 780600

5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601

6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344

7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517

LESS OVERPAYMENT (-)1661539

8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802

9 Escalation of minimum wage rates for field personnel 16022556

LESS OVERPAYMENT (-)125720

10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay

items 302 303 and 304

11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101

12 For minor realignment of roadway at Costs included in Nata contract pay items

TOTALS 4276898 95829606

-3shy

II STAFFING Excluding the mobilization and demobilization periods the major conshy

struction efforts took place during the calendar years 1974 1975 and 1976

A summary of the project staffing is presented in Table 2

TABLE 2

AverageMaximum Staffing Levels

Contractors Staff Engineers Staff

YearSource US Botswana TCN Code 941 US Botswana TCN

1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9

1976 15 290 3 40 4 13 7

Maximum 20 359 5 49 4 14 9

A paving specialist visited the Project in December 1973 and une 1974

in connection with proposals for upgrading the Project and again in March 1975

in connection with selection of material for the surface course

A partner from the Consultants home office made periodic visits to the

Project sites

III TRAINING

The Contractor trained Botswana Staff as drivers equipment operators

and oilers surveyors soils technicians mechanics helpers stewards and

maintenance workers

The Engineer trained Botswana Staff as soils technicians surveyors

drivers draftsmen and office clerical workers

IV CONSTRUCTION EQUIPMENT

In compliance with a requirement of the Contract Documents the Conshy

tractor presented a schedule of major plant and equipment to be used on the

Project Some adjustments were made to the listing as the job progressed

-4shy

Advances for the purchase of new items (materials construction plant

equipment tools spare parts maintenance supplies and buildings furniture

and equipment for the Contractors and Engineers camps) totaling U S

$124443700 and local currency Rand 225000 were made available to the

Contractor as provided for by the Contract Documents Reimbursement of

these advances were made in January1974 in accordance with the Contract

requirements

The major items of construction and shop equipment imported by the

Contractor for use on the project are listed in Appendix A

V MATERIALS UTILIZED

A SOILS

The formation consists of two layers the surface and base courses

placed on a compacted subgrade or embankment Base course materials were

obtained from 123 borrow pits along the roadway Surface course materials

which required processing were obtained from 9 borrow areas Appendix B

contains the Material Utilization Diagrams which show the sources of these

borrow materials and their utilization along the road Also included in Appendix

B are the Average Gradation Curves of the processed surface course materials

B WATER

Water for construction was obtained from 24 water wells drilled by the

Contractor Appendix C contains information on locations depth and yields

of the wells

VI PROTECT HISTORY

A GENERAL The engineers inspectors and materials technicians employed by TAMS

systematically inspected construction operations and sampled and tested mashy

terials being incorporated in the work to ensure compliance with contract reshy

quirements Each month a determination was made of the work accomplished

-5shy

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 7: BOTSWANA ZAMBIA - pdf.usaid.gov

B FUNDING

Funds for construction and construction supervision of the Project

were provided by loan agreements between the Government of the Republic of

Botswana and the United States of America acting through the Agency for

International Development (AID) The funds allocated were in the amount

of US $16600000 and were derived from the following sources

-U S $12600000 AID Loan No 690-H-001

-U S $ 4000000 First Amendment No 690-H-001A

C CONTRACTUAL ARRANGEMENTS

A contract for construction of the Botswana-Zambia Highway Project

was signed on Tune 26 1973 between the Government of the Republic of Botswana

and Grove International Corporation and Grove Shepherd Wilson and Kruge Inc

a joint venture for an estimated total cost of construction of US $897784200

and Rand 316082500 The contract provided for completion of the project

by April 25 1976 a 975 day period from Notice to Proceed given on August 22

1973

There were two amendments to the contract both dealing with the condishy

tions and limits for Off-Shelf purchases

A contract for supervision of construction was entered into by the Government

of the Republic of Botswana and Tippetts -Abbett-McCarthy-Stratton (TAMS) in

the form of a supplement to the basic agreement for design of the project The

supplemental agreement was dated July 2 1973 Two amendments the first

dated September 29 1976 and the second dated July 26 1977 extended the

the time for completion and modified the original estimate for cost of inspection

services

D MODIFICATIONS OF CONTR4tCT

During the course of construction twelve Change Orders approved

and signed by the Government were issued These orders are briefly described

in Table 1

-2shy

5307

TABLE 1 CHANGE ORDERS

Change Order Cost No Purpose US$ RandPula

1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138

2 Additional air-conditioning units for staff housing 376898

3 Arrangements for monthly advance progress payments for permanent materials on site shy

4 Addition to the number of TAMS staff housing units 3900000 780600

5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601

6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344

7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517

LESS OVERPAYMENT (-)1661539

8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802

9 Escalation of minimum wage rates for field personnel 16022556

LESS OVERPAYMENT (-)125720

10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay

items 302 303 and 304

11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101

12 For minor realignment of roadway at Costs included in Nata contract pay items

TOTALS 4276898 95829606

-3shy

II STAFFING Excluding the mobilization and demobilization periods the major conshy

struction efforts took place during the calendar years 1974 1975 and 1976

A summary of the project staffing is presented in Table 2

TABLE 2

AverageMaximum Staffing Levels

Contractors Staff Engineers Staff

YearSource US Botswana TCN Code 941 US Botswana TCN

1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9

1976 15 290 3 40 4 13 7

Maximum 20 359 5 49 4 14 9

A paving specialist visited the Project in December 1973 and une 1974

in connection with proposals for upgrading the Project and again in March 1975

in connection with selection of material for the surface course

A partner from the Consultants home office made periodic visits to the

Project sites

III TRAINING

The Contractor trained Botswana Staff as drivers equipment operators

and oilers surveyors soils technicians mechanics helpers stewards and

maintenance workers

The Engineer trained Botswana Staff as soils technicians surveyors

drivers draftsmen and office clerical workers

IV CONSTRUCTION EQUIPMENT

In compliance with a requirement of the Contract Documents the Conshy

tractor presented a schedule of major plant and equipment to be used on the

Project Some adjustments were made to the listing as the job progressed

-4shy

Advances for the purchase of new items (materials construction plant

equipment tools spare parts maintenance supplies and buildings furniture

and equipment for the Contractors and Engineers camps) totaling U S

$124443700 and local currency Rand 225000 were made available to the

Contractor as provided for by the Contract Documents Reimbursement of

these advances were made in January1974 in accordance with the Contract

requirements

The major items of construction and shop equipment imported by the

Contractor for use on the project are listed in Appendix A

V MATERIALS UTILIZED

A SOILS

The formation consists of two layers the surface and base courses

placed on a compacted subgrade or embankment Base course materials were

obtained from 123 borrow pits along the roadway Surface course materials

which required processing were obtained from 9 borrow areas Appendix B

contains the Material Utilization Diagrams which show the sources of these

borrow materials and their utilization along the road Also included in Appendix

B are the Average Gradation Curves of the processed surface course materials

B WATER

Water for construction was obtained from 24 water wells drilled by the

Contractor Appendix C contains information on locations depth and yields

of the wells

VI PROTECT HISTORY

A GENERAL The engineers inspectors and materials technicians employed by TAMS

systematically inspected construction operations and sampled and tested mashy

terials being incorporated in the work to ensure compliance with contract reshy

quirements Each month a determination was made of the work accomplished

-5shy

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 8: BOTSWANA ZAMBIA - pdf.usaid.gov

5307

TABLE 1 CHANGE ORDERS

Change Order Cost No Purpose US$ RandPula

1 Hotel rentals for Engineers staff while awaiting completion of housing units 842138

2 Additional air-conditioning units for staff housing 376898

3 Arrangements for monthly advance progress payments for permanent materials on site shy

4 Addition to the number of TAMS staff housing units 3900000 780600

5 For escalation of POL costs between 11 November 1973 and 11 February 1974 575601

6 For additional escalation of POL costs between 11 February 1974 and 14 May 1974 1815344

7 For additional escalation of POL costs between 14 May 1974 and 19 July 1974 77277517

LESS OVERPAYMENT (-)1661539

8 Interim allowance by GOB authorization to all employees to maximum rate of R500 per month between April 1973 and March 1974 297802

9 Escalation of minimum wage rates for field personnel 16022556

LESS OVERPAYMENT (-)125720

10 Reduction InRoad Reserve clearing on Costs included in Chobe By-Pass Road amounts in pay

items 302 303 and 304

11 For increase in mobilization costs to Costs included in cover importation of additional compaction amounts in equipment pay item 101

12 For minor realignment of roadway at Costs included in Nata contract pay items

TOTALS 4276898 95829606

-3shy

II STAFFING Excluding the mobilization and demobilization periods the major conshy

struction efforts took place during the calendar years 1974 1975 and 1976

A summary of the project staffing is presented in Table 2

TABLE 2

AverageMaximum Staffing Levels

Contractors Staff Engineers Staff

YearSource US Botswana TCN Code 941 US Botswana TCN

1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9

1976 15 290 3 40 4 13 7

Maximum 20 359 5 49 4 14 9

A paving specialist visited the Project in December 1973 and une 1974

in connection with proposals for upgrading the Project and again in March 1975

in connection with selection of material for the surface course

A partner from the Consultants home office made periodic visits to the

Project sites

III TRAINING

The Contractor trained Botswana Staff as drivers equipment operators

and oilers surveyors soils technicians mechanics helpers stewards and

maintenance workers

The Engineer trained Botswana Staff as soils technicians surveyors

drivers draftsmen and office clerical workers

IV CONSTRUCTION EQUIPMENT

In compliance with a requirement of the Contract Documents the Conshy

tractor presented a schedule of major plant and equipment to be used on the

Project Some adjustments were made to the listing as the job progressed

-4shy

Advances for the purchase of new items (materials construction plant

equipment tools spare parts maintenance supplies and buildings furniture

and equipment for the Contractors and Engineers camps) totaling U S

$124443700 and local currency Rand 225000 were made available to the

Contractor as provided for by the Contract Documents Reimbursement of

these advances were made in January1974 in accordance with the Contract

requirements

The major items of construction and shop equipment imported by the

Contractor for use on the project are listed in Appendix A

V MATERIALS UTILIZED

A SOILS

The formation consists of two layers the surface and base courses

placed on a compacted subgrade or embankment Base course materials were

obtained from 123 borrow pits along the roadway Surface course materials

which required processing were obtained from 9 borrow areas Appendix B

contains the Material Utilization Diagrams which show the sources of these

borrow materials and their utilization along the road Also included in Appendix

B are the Average Gradation Curves of the processed surface course materials

B WATER

Water for construction was obtained from 24 water wells drilled by the

Contractor Appendix C contains information on locations depth and yields

of the wells

VI PROTECT HISTORY

A GENERAL The engineers inspectors and materials technicians employed by TAMS

systematically inspected construction operations and sampled and tested mashy

terials being incorporated in the work to ensure compliance with contract reshy

quirements Each month a determination was made of the work accomplished

-5shy

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

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GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 9: BOTSWANA ZAMBIA - pdf.usaid.gov

II STAFFING Excluding the mobilization and demobilization periods the major conshy

struction efforts took place during the calendar years 1974 1975 and 1976

A summary of the project staffing is presented in Table 2

TABLE 2

AverageMaximum Staffing Levels

Contractors Staff Engineers Staff

YearSource US Botswana TCN Code 941 US Botswana TCN

1974 17 232 2 22 4 11 9 1975 18 302 3 43 4 12 9

1976 15 290 3 40 4 13 7

Maximum 20 359 5 49 4 14 9

A paving specialist visited the Project in December 1973 and une 1974

in connection with proposals for upgrading the Project and again in March 1975

in connection with selection of material for the surface course

A partner from the Consultants home office made periodic visits to the

Project sites

III TRAINING

The Contractor trained Botswana Staff as drivers equipment operators

and oilers surveyors soils technicians mechanics helpers stewards and

maintenance workers

The Engineer trained Botswana Staff as soils technicians surveyors

drivers draftsmen and office clerical workers

IV CONSTRUCTION EQUIPMENT

In compliance with a requirement of the Contract Documents the Conshy

tractor presented a schedule of major plant and equipment to be used on the

Project Some adjustments were made to the listing as the job progressed

-4shy

Advances for the purchase of new items (materials construction plant

equipment tools spare parts maintenance supplies and buildings furniture

and equipment for the Contractors and Engineers camps) totaling U S

$124443700 and local currency Rand 225000 were made available to the

Contractor as provided for by the Contract Documents Reimbursement of

these advances were made in January1974 in accordance with the Contract

requirements

The major items of construction and shop equipment imported by the

Contractor for use on the project are listed in Appendix A

V MATERIALS UTILIZED

A SOILS

The formation consists of two layers the surface and base courses

placed on a compacted subgrade or embankment Base course materials were

obtained from 123 borrow pits along the roadway Surface course materials

which required processing were obtained from 9 borrow areas Appendix B

contains the Material Utilization Diagrams which show the sources of these

borrow materials and their utilization along the road Also included in Appendix

B are the Average Gradation Curves of the processed surface course materials

B WATER

Water for construction was obtained from 24 water wells drilled by the

Contractor Appendix C contains information on locations depth and yields

of the wells

VI PROTECT HISTORY

A GENERAL The engineers inspectors and materials technicians employed by TAMS

systematically inspected construction operations and sampled and tested mashy

terials being incorporated in the work to ensure compliance with contract reshy

quirements Each month a determination was made of the work accomplished

-5shy

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

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CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

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GRAIN SIZE IN MILLIMETERS

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NU BE GRAVEL

COARSE

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MEDIUM

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FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

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I GRI SIZEto N OILS 1

I ANDLI IS

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IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

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SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

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II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

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N IC A11

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1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 10: BOTSWANA ZAMBIA - pdf.usaid.gov

Advances for the purchase of new items (materials construction plant

equipment tools spare parts maintenance supplies and buildings furniture

and equipment for the Contractors and Engineers camps) totaling U S

$124443700 and local currency Rand 225000 were made available to the

Contractor as provided for by the Contract Documents Reimbursement of

these advances were made in January1974 in accordance with the Contract

requirements

The major items of construction and shop equipment imported by the

Contractor for use on the project are listed in Appendix A

V MATERIALS UTILIZED

A SOILS

The formation consists of two layers the surface and base courses

placed on a compacted subgrade or embankment Base course materials were

obtained from 123 borrow pits along the roadway Surface course materials

which required processing were obtained from 9 borrow areas Appendix B

contains the Material Utilization Diagrams which show the sources of these

borrow materials and their utilization along the road Also included in Appendix

B are the Average Gradation Curves of the processed surface course materials

B WATER

Water for construction was obtained from 24 water wells drilled by the

Contractor Appendix C contains information on locations depth and yields

of the wells

VI PROTECT HISTORY

A GENERAL The engineers inspectors and materials technicians employed by TAMS

systematically inspected construction operations and sampled and tested mashy

terials being incorporated in the work to ensure compliance with contract reshy

quirements Each month a determination was made of the work accomplished

-5shy

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

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CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

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GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

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6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

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I1li

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N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 11: BOTSWANA ZAMBIA - pdf.usaid.gov

and eligible for payments and pay quantities for the Contractors monthly

progress estimates were certified

The Engineers survey parties verified reference points established

by the Contractors personnel for vertical and horizontal control points estabshy

lished along the preliminary base line and verified limits of bush clearing

flagged by the Contractor After the final line was staked detailed cross shy

sections were taken for computation of pay quantities Check measurements

were made periodically to verify the construction performed by the Contractor

As sections of the Project were completed final measurements were taken and

as-built plans prepared

Periodic progress reports and charts were prepared for the Government

and AID throughout the construction phase

After substantial completion of the works in January1977 a final inshy

spection of the project was made On January 19 1977 a Certificate of

Completion was issued by the Engineer As required by the Contract the

six-month maintenance period commenced

A synopsis of the more important correspondence initiated or received

by the Consultant in connection with administration of the Contract is included

in Appendix D

B SEQUENCE OF EVENTS

During late July and early August1973 the Contractor began to mobilize

personnel at Pandamatenga preparatory to commencing construction of the main

camp facilities

A sub-contract for construction of the engineers facilities atd some

items of the Contractors camp was negotiated between Grove International

and Botzam Services of Livingstone Zambia During September 1973 the subshy

contractor mobilized men equipment and material at Pandamatenga and comshy

menced construction on main camp housing units

On September 20 1973 the Contractor having been denied access

through the Botswana-Rhodesia Border at Pandamatenga for mobilizing equipment

material and supplies decided to shift the main camp site to the vicinity of

Kazungula The camp site was established at Kilometer 3+400 on the Chobe

River By-Pass road approximately 8 Kilometers east of the village of Kasane

3 -6shy

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

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2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 12: BOTSWANA ZAMBIA - pdf.usaid.gov

During late October construction of housing shops offices wareshy

houses and ancillary facilities commenced at the relocated main camp site

The camp facilities were substantially completed by the end of March 1974

Temporary satellite camps were later established at Pandamatenga at Kilometer

105 and at Kilometer 63 on the Nata-Kazungula segment of the project

Mobilization of construction equipment personnel material and supplies

began in early October 1973 and continued through April 1974

During the remainder of 1973 the construction efforts were concentrated

on construction of the main camp site A small amount of clearing grubbing

and earthwork was accomplished on the Chobe River By-Pass Road and on the

northern end of the Nata-Kazungula road

1 Principal Construction Accomplishments During 1974

Clearing and Grubbing - 5366 hectares completed between

Kilometer 297 and Kilometer 169 on the Nata-Kazungula segment

of the project

- Earthworks - excavation and borrow quantities came to a total

of approximately 506500m with the major portion of this work

performed between Kilometer 297 and Kilometer 196 on the Nata-

Kazungula segment of the project

- Pipe culverts - installed 59 pipes ranging in size from 18 to 60

diameter for a total of 1129 linealmeters between Kilometer 297

and Kilometer 196 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 3+500 on the Pandamatenga Access

Road

Base Course - approximately 113600m placed between Kilometer

297 and Kilometer 197 on the Nata-Kazungula segment and from

Kilometer 0+000 to Kilometer 2+350 on the Pandamatenga Access

Road

Surface Course - approximately 19000m was placed between

Kilometer 292 and Kilometer 273+500 on the Nata-Kazungula segment

5-7shyI

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 13: BOTSWANA ZAMBIA - pdf.usaid.gov

2 Principal Construction Accomplishments During 1975

- Clearing and Grubbing - 634 hectares completed between

Kilometer 169 and Kilometer 2+000 on the Nata-Kazungula

segment between Kilometer 0+000 and Kilometer 14+000

on the Chobe River By-Pass segment and from Kilometer 2+350

to Kilometer 5+275 on the Pandamatenga Access Road

- Earthworks - excavation and borrow quantities came to a total

of 379145m3 with the major share of this work performed

between Kilometer 196 and Kilometer 49+000 on the Nata-

Kazungula segment and on the Pandamatenga Access Road

- Pipe Culverts - 69 pipes were installed ranging in size from

18 to 60 in diameter for a total of 1308 lineal meters

between Kilometer 200 and Kilometer 65 on the Nata-Kazungula

segment and from Kilometer 0+000 to Kilometer 5+200 on the

Pandamatenga Access Road

Base Course - approximately 219000m was placed between

Kilometer 197 and Kilometer 57 on the Nata-Kazungula segment

and on the entire 52 kilometers of the Pandamatenga Access

Road

Surface Course - approximately 177 000m of surface material

placed between Kilometer 273 and Kilometer 130 on the Nata-

Kazungula segment

3 Principal Construction Accomplishments During 1976

- Clearing and Grubbing - completed 2188 hectares between

Kilometer 2+000 and Kildmeter 0+000 and between Kilometer

297+300 and Kilometer299+600 on the Nata-Kazungula segment

and between Kilometer 14+000 and Kilometer 65+000 on the

Chobe River By-Pass segment which completed this item of

work

- Earthworks - excavation and borrow quantities came to a total

of 235092m which completed this item of work

-8shy

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 14: BOTSWANA ZAMBIA - pdf.usaid.gov

Pipe Culverts - 36 pipes were installed ranging in size from

18 to 48 diameter for a total of 973 lineal meters The

major share of this work was performed on the Chobe River

By-Pass segment

Base Course- 206120m3 was placed on the Nata-Kazungula

road between Kilometer 57+600 and Kilometer 0+000 and between

Kilometer 297+300 and Kilometer 299+588 and on the Chobe River

By-Pass road between Kilometer 0+000 and Kilometer 65+048

Surface Course - 260878m placed between Kilometer 130+000

and Kilometer 0+000 on the Nata-Kazungula road and between

Kilometer 0+000 and Kilometer 65+048 on the Chobe River By-Pass

Road

4 Principal Construction Accomplishments During 1977

The Contractor continued to work on final clean-up and corrective

work in accordance with the punch list provided by the Engineer On January

19 1977 the Completion Certificate was issued with a list of outstanding

deficiencies attached These were rectified by the Contractor during the

early part of the six-rnnth maintenance period The Contractor in compliance

with the Engineers instructions installed 10 additional 18 diameter CMP

culverts on the Nata-Kazungula road between Kilometer 236 and Kilometer 238

Two additional pipes were installed at Kilometer 6+540 on the Chobe River

By-Pass Road Rock was placed on sand fill slopes and at culvert inlets and

outlets to guard against erosion on numerous sections of the Nata-Kazungula

Road and Chobe River By-Pass Road The Contractor maintained the project

until July 19 1977 when a Certificate of Maintenance was issued

C PROTECT SCHDULING AND DELAYS

On October 5 1973 as required by Clause 12 Part II-Conditions of

Particular Application of the Conditions of Contract - the Contractor submitted

his proposed construction schedule for the project The schedule was returned

to the Contractor on October 16 1973 for modifications It was resubmitted

and finally approved on March 19 1974

-9shy

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 15: BOTSWANA ZAMBIA - pdf.usaid.gov

In October 1974 the Contractor presented a revised construction schedule

It was not approved by the Engineer who informed the Contractor that the

actual rate of progress was far below that projected by the schedule and reshy

quested an explanation as to what steps were contemplated to bring progress

on the project up to schedule

On November 6 1974 the Contractor again presented a revised conshy

struction schedule reflecting a completion date beyond the contract period for

completing the Project The Contractor made reference to conditions which

had allegedly caused delays to progress on the Project and stated that claims

would be presented requesting time extension for completion of the Project

The revised schedule was not approved pending presentation by the Contractor

of all supporting details

By the end of December 1974 the Contractor had completed 29 percent

of the work then specified in the Contract as modified by ten change orders

This compared with 55 percent scheduled to be completed according to the

approved progress schedule

On February 27 1975 the Engineer notified the Contractor that progress

was continuing to fall further behind the approved construction schedule and

requested the Contractor to submit in writing his plans for bringing progress

up to schedule in compliance with pertinent provisions of the Contract On Tuly

24 1975 the Contractor again presented a revised construction schedule reflectshy

ing a completion date of August 31 1976 This schedule was accepted by

the Engineer in September 1975 with the provision that acceptance of the

schedule should in no way be construed as an approval for extension of time

for completion of the project

By the end of 1975 the Contractor had completed 63 percent of the work specified in the contract as compared with 73 percent projected in the revised

construction schedule

On March 11 1976 the Contractor presented the 6th revision of the

construction schedule reflecting a completion date of December 31 1976

This schedule is included herein as Figure 2 The schedule was accepted by

the Engineer on March 24 1976 with the provision that acceptance of this

schedule should in no manner be construed as an approval of extension of time

for completing the project

-0shy

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 16: BOTSWANA ZAMBIA - pdf.usaid.gov

LEGEND CONSTRUCTION PROGRESS CHART BOTSWANA-ZAMBIA HIGHWAY

WORK ELEMENT lt I

MOBILIZATION 7 T z ltgt 7gtlt74gtlaquo 7

GENERAL gt gt lt lt+ $ lt2740gt77

SURVEYS

AND SITE CLEARING

PREPARESUGRADE lt gt

7+47

I EARTHWORKS ~kgt1 E ~gt07 gt0gt0 ~laquolt gtgt~lt7laquogt 77gt

BASE COURSE

SURFACE COURSE ~lt 7ltgtlaquoD4

+4 7iA

gt

ltgt7 77 gtlt4lt

P

DRAINAGE I-shy___MAINTENANCEI I _ _ _ _

FACILITIES - -gt 7 7 7 7lt7 ltgttVViV77W7vV~7~

HIGHWAY HARDWARE lt

CHANGE ORDERS AND I

DAY WORKS lt

TOTAL

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

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S E- -IN S

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IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

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CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

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GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

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I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

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II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

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N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 17: BOTSWANA ZAMBIA - pdf.usaid.gov

VII FINANCIAL SUMMARY

As indicated in Section I-B of this report the funds available (from

AID) for the construction of this project were in the amount of U S $16600000

The disbursements of monies for the construction and construction supervision

through May 31 1978 are summarized in Table 3 along with the original esshy

timated amounts for comparison

TABLE 3

Disbursements Through Original Estimated

May 31 1978 Amounts

US $ RandPula US $ RandPula

Construction Costs (Grove International See Table 5) 882317486 310970881 897784200 316082500

Change Orders (From Table 1) 4276898 - 95829606

Supervision of Construction (TAMS) 129796299 - 135468100 -

TOTALS 1016390683 406800487 1033252300 316082500

From original contracts and supplements through May 31 1978

Table 4 presents a summary of final construction costs including

those by Contract Pay Items disbursed to the Contractor (Grove International)

The above listed costs do not include back charges on the loan which

charges are not available to the Engineer

The Contractor has submitted a series of claims requesting extensions

of time and reimbursement for claimed additional costs These claims are

currently under review by the Engineer A supplemental report will be issued

by the Engineer after the Contractors claims have been resolved and will

include any additional costs and time extensions awarded to the Contractor

Assuming an average rate of exchange of 1000 Pula or 1000 Rand

equal to 1350 U S Dollars and neglecting bank charges the approximate

loan balance as of May 31 1978 was U S $940000

-12shy

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 18: BOTSWANA ZAMBIA - pdf.usaid.gov

An average conversion rate of exchange has been used to estimate

the loan balance since the actual rate varied and actual draw-down figures

are not available to the Engineer

At the time of Project commencement the currency of Botswana was

the Rand In August 1976 the Botswana Government changed over from the

Rand to the Pula as the official currency During the course of construction

local currency disbursements have been made to the Contractor in both Rand

and Pula

-13shy

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 19: BOTSWANA ZAMBIA - pdf.usaid.gov

--- =1m =- M Il-- M=M m -

Sheet 1 of 4TABLE 4 - SCHEDULE OF FINAL CONTRACT QUANTITIES

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount RandPula

No Description Measure Final Quantities US $ RandPula US $

101 Mobilization Lump Sum 10000 57077200 58360600 -0shy

201 Engineers Staff Housing 2-Bedroom House Each 1 3333 1300000 272100 1300000 272100

202 Engineers Staff Housing 3-Bedroom House Each 3 10000 1400000 339300 4200000 1017900

203 Engineers Staff Housing Technicians House Each 4 10000 650000 130100 2600000 520400

204 Engineers Staff Housing Jr Staff Housing Each 16 10000 112500 19600 1800000 313600

205 Moving amp Re-erection of Engineers Staff Housing Each move NOT APPLICABLE

206 Engineers Main Office Lump Sum 10000 1800000 306300

207 Engineers Main Laboratory Lump Sum 10000 2600000 407700

208 Moving amp Re-erection of Engineers Main Office Each Move NOT A P L I CA B L E and Main Laboratory

209 Engineers Forward OfficeLaboratory Each 2 10000 766300 1532600 -0shy

210 Additional Surveying Office Laboratory and Prime Cost 69809 1500000 1047146 -0-Communication Equipment

211 Contractors Expenses and Profit on Percent 69809 25 261787 -0-Prime Cost Item 210

212 Provide and Maintain Vehicles for ihe Engineers Staff Vmonth 304 Vmonth 24000 17100 7296000 5198400

301 Basic Survey and Setting Out km 370590 km 48500 13400 17973600 4965905

302 Clear Heavy Bush Hectare 514075 ha 23200 7500 11926540 3855563

303 Cleat Light Bush Hectare 70053 ha 15500 5000 10858215 3502650

304 Clear Grassy Hectare 1775 ha 12400 4000 2201000 710000

401 Prepare Sand Subgrade for Embankment m2 3335443 m 2 011 006 36689873 20012658

402 Prepare Clay Subgrade for Embankment m2 408450 m 2 023 011 9394350 4492950

501 Construct Standard Embankment i3 865895 m3 117 047 101309715 40697065

3502 Construct Special Embankment m3 254779 m 196 074 49936684 18853646

030 384035 129450503 Excavate Unsuitable Material m3 4315 m3 089

601 Base Course m3 538854 m3 310 120 167044740 64662480

602 Overhaul of Base Course Material m3km 46462 m3kr 028 010 1300936 464620

701 Remove Overburden from Surface Course Borrow Pits m3 260056 m3 060 016 15603360 4160896

702 Surface Course m3 457260 m3 545 210 249206700 96024600

703 Haul of Surface Course Material m3kmn 6572330 m3kr 0102 0034 67037766 22345922

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 20: BOTSWANA ZAMBIA - pdf.usaid.gov

TABLE 4 (Continued) Sheet 2 of 4

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Final Revised Contract Amount US $ RandPula

801

802

803

Excavation and Backfill for Cuiverts up to 48 inches in diameter

Excavations for foundations of Culverts 48 inches and over

Backfilling culverts 48 inches and over

m3

m3

m3

558512 m3

94946 m3

322010 m3

480

270

490

330

140

360

2680858

256352

1577849

1843090

132923

1159236

804 Nestable Galvanized Corrugated Metal Pipe 18 inches in diameter 14 USSG

PIPE LM 249963 LM 4380 820 10948379 2049697

END SECTIONS Each 388 each 6660 225 2584080 87300

805 Nestable Galvanized Corrugated Metal Pipe 24 inches in diameter 14 USSG

PIPE LM 28104 LM 5560 1100 1562582 309144

Supply additional 24 inch diam Pipe 114035

END SECTIONS Each 34 each 10200 800 345800 27200

Supply additional End Sections 30600

806 Nestable Galvanized Corrugated Metal Pipe 36 inches in diameter 12 USSG

PIPE LM 19506 LM 10500 1600 2048130 312096

END SECTIONS Each 28 each 27600 2100 772800 58800

807 Nestable Galvanized Corrugated Metal Pipe 48 inches in diameter 12 USSG

PIPE LM 11522 each 13500 2200 1555470 253484

Supply additional 48 inch diam Pipe 10480

END SECTIONS Each 10 each 76200 4300 762000 43000

808 Nestable Galvanized Corrugated Metal Pipe 60 inches in diameter 10 USSG

PIPE LM 48768 LM 20400 2700 9948672 1316736

Supply additional 60 inch diam Pipe 47510

809

810

811

Excavate inlet and outlet drains mitre ditches and roadway ditches

Sand-cement Pitching

Clay slope Protection

m3

m3

m2

477781 m3

276769 m3

NA

110

2300

030

3000

100

525559

636569

-0-

143334

830307

-0shy

Supplied but not installed

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 21: BOTSWANA ZAMBIA - pdf.usaid.gov

mi -blN mN -m~ m ml m min nmlW arm~ nn- a a a a1 al a

TABLE 4 (Continued) Sheet 3 of 4

Item Unit of Total Revised Contract Unit Price Final Revised Contract Amount No Description

812 Supply Nestable Galvanized Corrugated

Metal Pipe 18 inches in diameter 14 USSG

PIPE

END SECTIONS

901 Construct Maintenance Facility Complex

902 Water Pump

903 Contractors Expenses and Profit on Prime Cost Item 902

1001 Road Signs

1002 Guide Posts

1003 Kilometre Posts

Dayworks

TOTAL-SCHEDULE OF QUANTITIES

a

0) CO I CO 2

TAMS Staff Hotel Accommodation

Air Conditioners TCN Houses

CO 3

CO 4

NA (Progress Payment Permanent Material)

Additional TCN Housing

SUB-TOTAL

CO 5 POL Escalation Cost

CO 6 POL Escalation Cost

CO 7 POL Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL POL ESCALATION COST

CO 8 Interim Allowance (Wage)

CO 9 Wage Escalation Cost

SUB-TOTAL

LESS OVERPAYMENT

TOTAL WAGE ESCALATION COST

Measure

LM

Each

Lump Sum

PC Sum

25

Each

Each

Each

As directed

Each

Final Quantities

238 LM

0 each

98

284 each

900 each

182 each

100

100

100

NA

6

100

100

100

100

100

US $

3400

6700

8520

As Billed

650000

As Shown

As Shown

As Shown

As Shown

As Shown

RandPula

900000

1000

1450

1500

130100

US $

809200

-0-

13014800

-0-

-0-

2419680

-0-

-0-

5999421

882317486

376898

3900000

4276898

RandPula

-0shy

-0shy

7308700

255223

63806

284000

1305000

273000

-0shy

310970881

842138

5307

780600

1628045

575601

1815344

77277517

79668462

1661539

78006923

297802

16022556

16320358

125720

16194638

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 22: BOTSWANA ZAMBIA - pdf.usaid.gov

TABLE 4 (Continued)

Item No Description

Unit of Measure

Total Revised Final Quantities

Contract Unit Price US $ RandPula

Sheet 4 of 4

Final Revised Contract Amount US $ RandPula

CO 10

CO 11

CO 12

Road Reserve cleared way Chobe River By-pass (included under items 302 303 and 304)

Importation Additional Sheeps foot roller (included under item 101)

Minor realignment of roadway at Nata

TOTAL CONSTRUCTION COST

100

100

100

886594384 406800487

ishy

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 23: BOTSWANA ZAMBIA - pdf.usaid.gov

I I I I I I I I

APPENDIX A

I CONSTRUCTION EQUIPMENT

I I I I U I I I I I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 24: BOTSWANA ZAMBIA - pdf.usaid.gov

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT

I Descqription

2 Chevrolet Impala Sedan

5 jeep-Wagoner

7 jeep-Wagoner

1 Chevrolet Vega

23 Chevrolet Pickup

19 Mack Tractor (T675-8W)

2 Chevrolet Flat Bed

5 Mack-Platform Stake (T426-3500)

1 Mack-2000 Gal Fuel (T426-3500)

4 Mack Dump Truck 10 cy

2 Chevrolet Dump Truck 5 cy

1 Mack-Birmingham Tandum Lowboy Trailer

2 Mack-Gindy 25 Ton Tandum Semi Trailer

8 Heil- P3S 303 cy Dump Trailer

I 7 Fruehauf-TEO-F3-R 10000 Gal Tanker

5 Fruehauf-TEO-F2-R 6500 Gal Tanker

5 Fruehauf-Tandum Axle Dolly

2 Barko 14000 Telescopic Crane

6 Cobey 1062 Wagon Trailer

1 Cedarapids 443 Commander Crusher

1 Peerless Portable Base Stabilisation Plant

2 Atlantic International Water Treatment Plant

6 Caterpillar 631-B TractorS631-B Scraper

7 Caterpillar D8-H Dozer

2 4

Caterpillar D9- Dozer Caterpillar D6-C Dozer

2 Caterpillar 12-F Grader

5 Caterpillar 14-E Grader

U A-i

1

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 25: BOTSWANA ZAMBIA - pdf.usaid.gov

I

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (Cont)

Quantity

4

1

4

11Raygo

1

S1 2

ICaterpillar-200KW 3

1

1

1

1

1

3

2 2

2

I

1

2

2

I

1 2

8

1

j 8

1 4

9

1

Description

Caterpillar 966 Loader

Trojan 4000 Loader

Raygo 400A Compactor Vibrator

410A Compactor Vibrator

Vibro Plus Vibrating Sheepsfoot Roller

Bros 10000 Compactor

Bros 6000 Compactor

Generator Caterpillar - 125KW Generator

Little Reddevil Generator

Kholer 3KW Generator

Kholer 2KW Generator

Detroit Diesel Generator (2D-32)

Kholer Generator (5CKM61)

Hobart GR-3 03 Welders w trolley

Worthington 365 Compressor Worthington 160 Compressor

Kellypower Tamper

John Deere 2700 Disc Harrow10 Cut

ohn Deere 1630 Disc Harrow 7 Cut

Worthington WS-55 Rock Drill

Alemite Portable Service Station

Graco Lube Ranger

Worthington Wagon Drill

Layne Bowler Deep Well Pump

Layne Bowler Pump only

4 Centrifugal Pump

2 Centrifugal Pump

Columbian Steel Water Tanks 20000 US Gal

A-2

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

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I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

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1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

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GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

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96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

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GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

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6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 26: BOTSWANA ZAMBIA - pdf.usaid.gov

EQUIPMENT IMPORTED BY CONTRACTOR FOR BOTSWANA-ZAMBIA ROAD PROTECT (contd)

Quanti

1I Description

Caterpillar Parallel Shank Ripper

2 Fleco Blade Rake

4 Chainsaw

3 Gardner-Denver Compressor

5 Aerotron Radio Transmitters $1203

7 Aerotron Radio Receivers $2 10

16 SSB Radio Transceivers $1340

8 Auxilliary Radio Transceivers $1340

2 Cevy 4 x 4 Pickup Truck 8 Chevy 2 x 4 Pickup Truck

1 L B Smith Cone Crusher

2 Ford 4 x 4 (1164-14C Tractor)

2 Bros Sheepsfoot Roller

1 Hyster Towed Vibratory Compactor

During 1975 and 1976 the Contractor added the following listed equipment

1 Caterpillar No 14 Motor Grader

1 Caterpillar No 966 Loader

1 Trojan No 4000 Loader

1 Cone Crushing Plant 3 ft Standard Fine Bowl with 4 Deck Screens

4 Conveyor Units

A-3

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 27: BOTSWANA ZAMBIA - pdf.usaid.gov

I 1 I I I U I I

APPENDIX B

I I SOILS AND MATERIALS

I I 1 I I I I I 1

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

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6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 28: BOTSWANA ZAMBIA - pdf.usaid.gov

APPENDIX B

SOILS AND MATERIALS

(a) General

The road pavement is composed basically of two layers the surface

course and base course overlaying a compacted subgrade or embankment

The sources and volumes of the surface course and base course materials

are indicated in the Materials Utilization Diagrams included as Figures B-i

through B-4

(b) Subgrade

The subgrade soil consists primarily of aeolian fine sand except

for approximately 36 kilometers of the road for which the subgrade is a pan material consisting of clay In the pan areas special 1 Om thick

embankments were constructed with plasticity and fineness control of material

The subgrade and embankment soils were compacted to a minimum of 90

of modified AASHTO compaction The measured mean relative compaction

obtained immediately after compaction of the subgrade was 935 of the modified AASHTO maximum density

(c) Base Course

The majority of the base course materials are derived from aeolian deposits ie fine sand with a trace to some silty clay The

remaining base bourse approximately 15 of the total was obtained from pits having a large component of gravel The 15cm thick base

course is bank run or blended material for which the amounts of fines

and plasticity were controlled The base course materials were obtained from 123 base borrow pits and compacted to a minimum 95 of modified AASHTO density The measured mean relative compaction

directly after construction was 96 of the modified AASHTO maximum

density

(d) Surface Course

The 15cm thick surface course is well graded sandy gravel with

some silty clay fraction The materials for the road segment from

Kilometer 0+000 to Kilometer 173+000 are derived from calcrete deposits

while the materials for the remaining portion are derived from weathered

3-1

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 29: BOTSWANA ZAMBIA - pdf.usaid.gov

bedrock The surface course has controlled gradation plasticity and

durability to obtain sufficient strength to reduce ravelling to a minimum

particularly during the dry season and to resist the wear of traffic

Surface course materials have been obtained by screening crushing

and blending materials from 9 borrow areas and were compacted to a

minimum of 98 of modified AASUTO maximum dry density The comshy

posite properties for each borrow pit are indicated in the Average

Gradation Ourvesincluded as Figures B-5 through B-13 Directly

after construction of the surface course the measured mean relative

compaction was 100 of the modified AASHTO maximum density

B-2

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

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E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

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GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

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GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

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SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

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IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

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BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

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96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

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GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 30: BOTSWANA ZAMBIA - pdf.usaid.gov

N A TA K A ZUN GU LA RO0A D 70 033 90 CC

00 00 0 0 0+I 03- 30L K

0 I I

M 3 100 0002L [2

_

MATERIALS UTILIZATION DIAGRAM Fiure -I

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

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IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

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ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

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GRAIN SIZE IN MILLIMETERS

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MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

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I GRI SIZEto N OILS 1

I ANDLI IS

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IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

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II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

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N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 31: BOTSWANA ZAMBIA - pdf.usaid.gov

NATA - KAZUNGULA ROAD

+--- 121

y T

MATERIALS UTILIZATION DIAGRAM Fgure R-Z

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

11I a to to 0 i oIIIa lf I

II

SN Cu ye B

II N

o

i B _ ___~ N II 1 l s - Curi e At-

I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

V11 6plusmn SSIEVE

6 i S 0-4 0 10 miUS) 3055 3 001mesa a

9 I I I - -

Crye B

S bull

1TCrii INN20 1 e A- NI deg I FIK 46591 2 a045 4 2 1115 5 2 6

GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

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Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

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2 1 65

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5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 32: BOTSWANA ZAMBIA - pdf.usaid.gov

NAT A - KAZ UN GULA ROAD

07 2 230K300 220 220 232 252

I 3 3 2

MATERIALS UTILIZATION DIAGRAM Figure 2-3

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

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II

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I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

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GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

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E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

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IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

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ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

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GRAIN SIZE IN MILLIMETERS

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I

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I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

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I GRI SIZEto N OILS 1

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IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

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II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

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N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 33: BOTSWANA ZAMBIA - pdf.usaid.gov

itLT-m

CHOBE RIVER BY-PASS ROAD 02__ Q___ 0 60 40 - 0 50 0 i

-F-CEL

-Tl J-II II

MATERIALS UTILIZATION DIAGRAM Figure B-4

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

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GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

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GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

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A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

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SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

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IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

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NUMBE NERPI

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5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

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SAMPLE4 DEP EEY 1 SCBI1PTIORI

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B

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Composite

38

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Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

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DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

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SIEVE ANALYSIS W11 ANKEm SIS

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II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

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1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 34: BOTSWANA ZAMBIA - pdf.usaid.gov

3 SIEVE ANALYSIS SMI~ia VIII

IY UN In~ VI STAISRS SIEVE NUMBfh SUE9 - usuLguNuus O-- aoIiUl- I1

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I 2 I a 6 4 2 i5 4 3 2 a -

GRAIN I IZE MILTERS

SILT AND CLAY SOILS GRAVEL SAND

I NUMBE1RSAMPLE DEPTH LL KIE IPTIONIELEV P1 ECIT

A Composit 38 19 CrusherAverage Runof 192 samples

B Composit 33 17 Surface Course Blend asAverage of 236 samples placed

MDD 1960 kgm Los Angeles Abrasion = 42 Average Blend Added 15=

REPUBLIC OF BOTSWANA TI PPETTS-ASSETT-NcCAIThY-STRATTOU MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY BOTSWANA-ZAMBIA GRAIN SIZE DISTRIBUTION BY DmArTE Q76HIGHWAY j PIT 2A DOi FIGURE B-5

E ANLYSISSIEVE NALYSIS NI

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GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

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E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

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IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

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NUMBE NERPI

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5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

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B

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38

26

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Crusher Run Basaltic Aggregate

Average of 176 samples

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Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

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DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

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SIEVE ANALYSIS W11 ANKEm SIS

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II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

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SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 35: BOTSWANA ZAMBIA - pdf.usaid.gov

E ANLYSISSIEVE NALYSIS NI

OPEING - In jS PhIMS-SEVE iNRh3EN son - MILLIMETER

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GRIISZ IN MILLIMETERS

COACE iE NtIUM FI SILT AD CLAY SOILSGRAVEL SAND

5r IBSAMPLE DEPTH ELEV LLP1

A Composite 28 10 Crusher Run Average of 229 samples

B Composite 28 11 Surface Course Blend as Placed Average of 58 samples

2050 kgm3 Averaoe Blend Added shy

TIPPETTS-ASETT-NCCARTIY-STATTONREPUBLIC OF BOTSWANA NEW YORK NY

MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS

BRAIN SIZE DISTRIBUTION BY NCZ jAATE9 876BOTSWANA-ZAMBIA

HIGHWAY PIT 14 amp 14A OWN FIGURE B-6

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Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

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SAMP DEPTH ELEV L P1 0NBERIIPTI

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B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

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B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

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Average of 176 samples

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Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

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B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

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SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

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SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

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I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 36: BOTSWANA ZAMBIA - pdf.usaid.gov

i

S ANALYSIS 01 ANALYSIS

SIEVE - n -IIII- SIZ-MII- - IN i

It a s 1

Ue a -- e B

- 1 -I-[_I - I I I

6l51 10 8 $514 1 O is 05I I 21 8GANSZNILMTR OA RE Filo 9OA-1i 1DI UM F log S ILT AND CLAY SO ILS

GRAVEL nSAND

E--l I UNEASMPLEDEPlTH ELEV LL P1 KWKIPTION

A Composite 36 19 Crusher Run

Average of 116 Samples

B Composite 36 15 Surface Course Blend Average of 138 samples

H GHWA E SA 18 SILT ANDURCLA-SIL

3kgm Los Angeles Abrasion 28

Av agau Pnd AAd = 907 ITI UETT$-ABBTT-NcentcentARTNY-STRATTON

NEW YORK NY

REPUBLIC OF BOTSWANA

MINISTRY OF WORKS amp COM24UNICATIONSIT NINEERS1

I I MGIELI7 I 1 8AIIGIWAE

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

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I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

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OA

$05 9 2

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2 1 65

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GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

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6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 37: BOTSWANA ZAMBIA - pdf.usaid.gov

I

4

SIEVE ANALYSIS nimsA NALYuSiS IlEVI O[II -IU |US IITMOARSl SIEVE NUMBR UN ILIEU

V 1 Oe 001l

- -r--I-I -- I

S E- -IN S

KI zz7llfl$zIIIti z I

low560

20

2

IGRAIN SIZE IN MILLIMETERS

COANSE FINE tOASEi MEDIUM I SILT AND CLAY SOILS

GRAVEL SAND

SAMP DEPTH ELEV L P1 0NBERIIPTI

A Composit 26 12 Crusher Run Basaltic AggregateAverage of 91 samples

B Composit( 28 13 Surface Course Blend as Placed

Average of 85 samples

Average MDD = 2200 kgm3 Los Angeles Abrasion 38 Average OMC 85 Aver Plend AIAA

REPUBLIC OF BOTSWANA TI EfTTS-AIETT-NCARTY-STRATTOi ITTqTPI yen O WOVQ A n rn WTraTTn~lz ENGINEERS NEW YOlK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION 1Y HBC SATE2297f HIGHWAY PIT 21A ur FIGURE B8

-D IUR IB

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

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I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

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20

OA

$05 9 2

E

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GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

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6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 38: BOTSWANA ZAMBIA - pdf.usaid.gov

II SIEVE ANALYIIS 1411 I LYIlMll

[urn $11min - I I ITUSE IVV I - mampINimums1 -l0 n 001

a1 i 4 is s 0 aL w I 2 0665S a a 4 i 0i

-7sl

96---

I RI IE IN M IEER

CfliEI FIN g o au SIT SILFIN M40 5C o432 14593 ry B6

ver 7 samples

NUMBE NERPI

Ay I GRAIN SIZE IN MILLIMETR

5OSOAE MINE COASE MIltS FINE SILT A CLAy GSOILS GRAVEL ISAND

A Q A- Aii dd d~A

IMUBEIRIIIIPIi

3A Composit 24 10 Crusher Run Basaltic Aggregate Average of 101 sables

B Composit 26 13 Surface Course BlendU as Placed

Average of 79 samples

AveageMDD kgm 3 Los Angeles Abrasion = 362233Average OMD = 2235 kgrn3 ledAded =

REPUBLIC OF BOTSWANA TIlll ETTS-ASSETT-NCCARThlY-STATTOU3MINISTRY OF WORKS AND COMMUNICATIONS ENlIEEE NEW Yik NY GRAIN SIZE DISTEIIIUTION I HEC IMnT22q3BOTSWANA-ZA~MxIA HI GHWAY PIT 23 eFIGURE B-9

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 39: BOTSWANA ZAMBIA - pdf.usaid.gov

SIEVE ANALYSIS IMmv na awLYoia

SIV SANDARD SIEVE NUMBERS SIZE - NIULIETMII-I

I- 01 001

e---__

Ir1 -NIP_]

20

OA

$05 9 2

E

I

86543

I

7tN

2 1 65

_OAlEED t

5 2

FN

I

GRAIN SIZE IN MILLIMETERS

1 111I

NU BE GRAVEL

COARSE

I

MEDIUM

I SAND

FSILT AND CLAY SOILS

SAMPLE4 DEP EEY 1 SCBI1PTIORI

A

B

Composite

Composite

38

26

17

13

Crusher Run Basaltic Aggregate

Average of 176 samples

Surface Course Blend -s Placed Average of 58 samples

Average MDD = 2135 kgm Los Angeles Abrasion = 38

Average OMC = 90 Average Blend Added = 19 REPUBLIC OF BOTSWANA TI PPETTS-ABETT-cCAUTNY-TRATTON MINISTRY OF WORMS amp COMMUJNICATIONS ENINEERS NEW YORK NY

WAY BRAIN SIZE DISTRIBUTIONI BY HBC JATE 22971

3BOTSWANA-ZAMBIA HIGHWAY PIT 25A Iue FIGURE B-10

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

Page 40: BOTSWANA ZAMBIA - pdf.usaid.gov

SIEVE ANIALYSIS lNVINI1111 ANALYSIS

I EV OPE IN - INI8 TOSIIEENN1-MLII

I

I - - i ii 0

I GRI SIZEto N OILS 1

I ANDLI IS

G VELIZE I

IOC I FIRE_ _ COASE EDIU FIK SLT AD CAY OIL

-APL ESN

DEPTH ELEY LL PI DESCRIPTIONNUSMBE

3A Composite 26 13 Crusher Run Basaltic Aggregate Average of 83 samples

B Composite 26 13 Surface Course Blend as Placed Average of 58 samples

Average MUD = 2300 kgrn7 Los Angeles Abrasion = 34

Averaae OMtC = 86 Average Blend Added = 21 REPUBLIC OF BOTSWANA T1 PP ETTS- AESETT-NcCARTht- STRATTON MINISTRY OF WORKS AND COMMUNICATIONS ENGINEERS NEW YORK NY

BOTSWANA-ZAM3IA BRAIN SIZE DISTRIBUTION I y HBC JDATE 22 97 HIHWAY IPIT 27 1 FIGURE -11

___ I

SIEVE ANALYSIS W11 ANKEm SIS

SIEVE O ENINI - IN STANDARI SIEVE NUMBERI Sit- NILLIfIhhS

01 001

sodego

i i

U Ae

6 559 2 a65 3 2 1 6532 S

II GRAIN SIZE INMILLIMETERS

=COARSIE FIRE COARSE MODILEM FINE SITADCAIOL

GRAVEL SN

I SAMPE DEPTH ELEV LL P)S DESCRIPTION

A omposite 28 10 Crusher Run

SAverage of 72 samples

B -ompositv 31 13 Surface Course Blend as Placed Average of 62 samples

Average MD 40 kg Los Angeles Abrasion 25 Average Blend Added =20

REPUBLICUINISTRY 0OF OF

BOTSWANA WORKS amp COMMUNIGTIONS

TI PPEflS-ABETT-cCARTNt-STRATTOU ENGINEERS NEW YORK NY

BOTSWANA-ZAMBIA BRAIN SIZE DISTRIBUTION By CKA DA 2 5 HIGHWAY -F PIT 29 Do FIGURE B-12

I

SIEVE ANALYSIS HWYNHOETR ANLYSIS SIEVE OMEINGHQ INI _US STANDARS SIEVE NUMBERS SIZE - MILLINTM

-F-I 0 001-1 xiii i iw 60 Ioo 2ot ) 061 51 2 3665 93U

I _

I1li

Ia _ Cu ve

N IC A11

IQI II

1 IG S IIIMETE

I FINEICAE C E DUM FINE ISILT AND CLAY SOILS GRAVEL SAND

SAMPLE DEPTH ELEV LL PI NIUM4BER DESCRIPTION

A Composite 34 15 Crusher Run Average of 74 samples

B Composite 29 12 Surface Course Blend as Placed

Average of 42 samples

MDD 2140 kgm 3 Los Angeles Abrasion = 27 Average Blend Added = 15

REPUBLIC OF BOTSWANA TI PPETTS-AlETT-NCA TRY-STRATTON MINISTRY OF WORKS ANDATTON BOTSWANA-ZAM1 IA

ENGINEER$ R1AIN 31ZE D13TIRIBUTIO1N

NEW sy cKA

YORK NYT E-2 5 1 7 7

HIGHWAY PIT 32A Mwe FIGURE B-13

I I I I I I I I

APPENDIX C

I WATER WELL LOCATIONS

I I I I I I I I I

APPENDIX C WATER WELL LOCATIONS

WELL NO 3

Location Km 171 Lt of centerline 200 meters

Drill - 6 x 392

Ream - 8 x 92

Case - 6 x 84

Test - 24 Hours - 276

Pump 6000 G P H

Total depth - 392

Pumped at 150

24 Hr Drawdown - 3

Water Good

WELL NO 4

Location Km 175 - Lt of centerline 100 meters

Drill - 6 x 380

Ream - 8 x 82

Case - 7 x 82

Test - 276

Pump 1800 G P H

Total depth - 380

Pumped at 200

Drawdown 24 Hr - 100

Water Good

WELL NO 5 (Govt No 2436

Location Km 178 - Lt of centerline 115 meters

Test -276

Pump - 1400 G P H

Total depth - 160

Pumped at 140

24 Hr Drawdown - 60

Water Good C-1

WELL NO 6

Location Km 183 - Lt of centerline 60 meters

Drill - 6 x 436

Ream - 8 x 86

Case - 7 x 86

Test - 276

Pump - 500 G P H

Total depth - 436

Pumped at 250

24 Hr Drawdown - 150

Water Good

WELL NO 7 - (Govt No 2435)

Location Km 189 - Rt of centerline 100 meters

Clean amp Test

Pump - 6000 G P H

Pumped at 140

24 Hr Drawdown - 10

Water Good

WELL NO 14

Location Km 252 - Lt of centerline 100 meters

Drill - 6 x 250

Ream - 8 x 53

Case - 6 x 53

Test - 276

Pump - 6000 G P H

Total depth - 250

Pumped at 150

24 Hr Drawdown - 6

Water Good

C-2

WELL AT KM 256 MAINTENANCE FACILITY NO 3

Location Km 256 - Lt of centerline 200 meters

Depth - 100 feet

Water Rest Level - 42 feet

Depth Pump Set - 70 feet

24 Hr Test - 1800 G P H

WELL NO 15

Location Km 245 - Rt of centerline 40 meters

Drill - 6 x 260

Ream - 8 x 54

Case - 54

Test -276

Pump - 1500 G P H

Total depth - 260

Pumped at 200

24 Hr Drawdown - 140

Water Good

WELL NO 16 Location Km 236 -Rt of centerline 30 meters

Drill - 6 x 250

Ream - 8 x 22

Case - 6 x 22

Test - 276

Pump -6000 G P H

Total depth - 288

Pumped at 150

24 Hr Drawdown - 10

Water Good

C-3

WELL NO 17

Location Km 224 - Rt of centerline 30 meters

Drill - 10 x 89

Case - 8 x 85

Drill- 8x 43

Drill - 6 x 38

Case -6 x 132

Test - 276

Pump -2000 G P H

Total Depth - 170

Pumped at 100

24 Hr Drawdown - 11

Water Good

WELL NO 18

Location Km 217 - Lt of centerline 200 meters

Drill -i0 x 70

Case - 7 x 70

Drill - 7 x 52

Drill - 6 x 88

Case - 6 x 122

Test - 276

Pump 2400 G P H

Total depth - 210

Pumped at 200

24 Hr Drawdown - 140

Water Good

C-4

WELL NO 19

Location Km 213 - Lt of centerline 100 meters

Drill - 10 x 44

Case - 8 x 40

Drill - 8 x 76

Drill 6 x 130

Case - 6 x 120

Test - 276

Pump - 6000 G P H

Total depth - 210

Pumped at 60

24 Hr Drawdown - 10

Water Good

WELL NO 20

Location Km 143 - Rt of centerline 100 meters

Drill - 10 x 240

Case - 7 x 220

Drill -6 x 378

Case - 6 x 240

Case - 5 x 240

Test - 276

Pump -1500 G P H

Total depth - 618

Pumped at 460

24 Hr Drawdown - 105

Water slightly salty to taste but drinkable

C-5

WELL NO 23

Location Km 139 - Lt of centerline 100 meters

Drill - 12 x 290

Place amp Extract Case - 10 x 290

Drill - 8 x 30

Drill - 6 x 40

Case - 8 x 290

Case - 6 x 320

Test - 276

Pump - 1200 G P H

Total depth - 360

Pumped at 330

24 Hr Drawdown - 120

Water salty

WELL NO 24

Location Km 135 - Lt of centerline 500 meters

Drill - 12 x 270

Drill - 10 x 10

Case - 10 x 270

Drill -8 x 30

Case - 8 x 290

Case -6 x 310

Case - 5 x 320

Test -276

Pump -4000 +G P H

Total depth - 320

Pumped at 270

24 Hr Drawdown - 2

Water Salty

C-6

I

5

WELL KM 205 MAINTENANCE FACILITY NO 2

Location Km 105 - Lt of centerline 40 meters

Depth - 302 feet

~ Water Rest Level - 82 feet

Depth Pump Set - 150 feet

48 Hr Test - 3000 + G P H

WELL NO 26

Location Km 82 - Lt of centerline 100 meters

Drill - 12 x 145

5 -8 x145

Drill - 8 x 23

-Case

I Drill - 7 x 10

Case - 7 x 168

I Case - 6 x178

Test - 276

Pump - 1200 G P H

Total depth - 306

I Pumped at 140

24 Hr Drawdown - 35

I Water Good

C

I 0-7

WELL NO 27

Location Km 77 - Lt of centerline 100 meters

Drill - 12 x 174

Install amp Extract Case - 10 x 174

Case - 8 x 174

Drill - 9 x 68

Drill - 8 x 64

Case - 7 x 242

Case - 6 x 306

Test - 276

Pump - 4000 + G P H

Total Depth - 306

Pumpe at 240

24 Hr Drawdown - 0

Water Good

WELL NO 28- (Govt No 2465)

Location Km 63 - Rt of centerline 100 meters

Clean amp Extract Case - 300

Ream - 10 x 98

Ream - 8x 27

Ream - 6 x 12

Case - 8 x 98

Case - 6 x 125

Test - 276

Pump - 1000 + G P H

Total depth - 137

Pumped at 130

24 Hr Drawdown - 33

Water Good

C-8

WELL NO 30

Location Km 47 - Rt of centerline 400 meters

Drill - 12 x 132

Case - 10 x 89

Install amp Extract Case - 12 x 43

Drill - 10 x 117

Case - 7 x 242

Drill - 6 x 183

Install amp Extract Case - 6 x 408

Test - 276

Pump - 1000 G P H

Total depth - 408

Pumped at 160

24 Hr Drawdown - 77

Water Salty

WELL NO 31

- Lt of centerline 200 metersLocation Km 44

Drill - 12 x 110

Case - 10 x 100

Drill - 10 x 142

Case 8 x 142

Drill - 8 x 250

Case 7 x 392

Drill - 6 x 78

Test - 276

Pump - 3000 G P H

Total depth - 502

Pumped at 160

24 Hr Drawdown - 44

Water Salty

C-9

WELL NO 32

Location Km 42 - Lt of centerline 100 meters

Drill - 12 x 108

Case - 10 x 108

Drill - 10 x 212

Drill - 8 x 120

Case - 6 x 340

Case - 8 x 182

Test - 276

Pump - 3000 + G P H

Total depth - 448

Pumped at 160

24 Hr Drawdown - 20

Water Salty

WELL NO 34

Location Km 35 - Lt of centerline 200 meters

Drill - 12 x 230

Install amp Extract Case - 10 x 230

Drill - 8 x 30

Case -6 x 260

Drill - 6 x 160

Case -5 x 324

Case - 8 x 20

Test - 276

Pump -1000 + G P H

Total depth - 420

Pumped at 150

24 Hr Drawdown - 100

Water Salty

C-10

WELL NO 36

Location Km 7 N E along old track from Km 63

Drill - 12 x 180

Case - 10 x 180

Drill - 10 x 231

Case - 8 x 211

Drill- 8x 254

Case - 6 x 245

Test -276

Pump -4000 + G P H

Total depth - 265

Pumped at 180

24 Hr Drawdown - 0

Water Good

C-11

I 3 I 1 I I I I B j APPENDDC D

SYNOPSIS 0 KEY CORRESPONDENCE

3 DURING CONSTRUCTION

I pound I I I 1 I I

On September 1 1973 the Contractor confirmed the

estimated amounts payable to Sub-Contractors for well drilling and construction of the Engineers facilities and requested formal approvalof the proposed sub-contracts

On September 11 1973 the Engineer advised the Contractorthat the sub-contractcrs for well drilling and construction of base campfacilities were approved for work on the project

On September 12 1973 the Engineer advised the Contractorthat it new appears certain penxission to use the Matetsi-PandamatengaRoad as a supply route during construction of the project cannot be

obtained and that access through Rhodesia for contractors vehicles and sipplies will be restricted to the Kazungula and Plumtree Border Posts The Contractor in light of this development was requested to advise in writing whether any changes in his construction program and progress schedule were contemplated

On September 14 1973 the Contractor replied that denial of permission to use the Matetsi siding and closure of the Border at Pandamatenga has and will cause undue hardship on the Contractor and was a complete surprise to the Contractor He further advised that he was not expecting at this time to make any major changes in the construction program However time had nor allowed a proper investigation and no definite answer could be given He further advised that if any major changes were forced to be made the Engineer would be advised as soon as chtnges were known or brought about by circtstances tnforeeable at this tine

On September 20 1973 the Contractor advised the Engineer that circunstances beyond his control had forced his moving the main can from Pandamatenga to Kasane Further that this move would cause major changes in the progress schedule and the changes would be submitted when time pernitted study and preparation

On October 3 1973 the Contractor advised the Engineer that closure of the Border at Pandamatenga would cause added cost and delay to the Project and the Contractor intended to claim for the added cost and a time extension

On October 3 1973 the Contractor advised the Engineer that deterioration to the access road between Nata and Kasane would cause added cost and delay to the Project and his intent to claim added cost and time extension

On October 5 1973 the Contractor submitted his construction schedule to the Engineer for approval

On October 15 1973 the Engineer returned the construction progress schedule for correction

On October 17 1973 the Engineer advised the Contractor respecting his intent to claim for additional cost and rime extension due to deterioration of access roads that in the Engineers opinion there were no valid grounds for a claim

D-I

On October 23 1973 the Engineer transmitted revised copies of the Borrow Pit Location plan and materials utilization diagram to the Contractor

On February 19 1974 the Engineer advised the Contractor of unsatisfactory work in constructing standard enbanknent on the project

On April 23 1974 the Engineer notified the Contractor of a change in the location of surface course pit No 25

On April 25 1974 the Engineer forwarded a copy of a letter from REDSO Nairobi concerning Off Shelf procurement of caterpillar spare parts and requested that the Contractor comply with the contents of the REDSO letter

On May 14 1974 the Contractor submitted a request to increase the $50000 limitation on Off Shelf purchases specified under clause 43 4(b) of the Conditions of Particular Application of the Contract Docunents

On May 16 1974 the Engineer advised the Contractor that the Go enmrent of Botswana had authorized the upgrading of the project and requested the earliest possible date principals of Grove New York could mreet in Kasane to finalise details covering changes involved to the presentconstruction contract

On May 25 1974 the Contractor advised that in view of scheduled negotiations for upgrading the project he would defer the placing of surface course material until the result of negotiations for upgrading the project were finalised

On July 12 1974 the Contractor advised the Engineer that in view of the delay in approval to conmrnce upgrading the project the Contractor had terminated all negotiations with various suppliers and potential subshycontractors The project planning would no longer consider the possibilityof upgrading

On July 15 1974 the Engineer advised the Contractor that he agreed with the Contractors plan to disregard upgrading in futureplanning on the project The Engineer further stated that the Contractor should now concentrate on regaining the lost tine since actual progress is 13 as opposed to 32 projected on the approved construction progress schedule

On August 7 1974 the Engineer forwarded a copy of the USAID Auditors Report to the Contractor with a request that an early reply be given in order that he could respond to the Auditors request

On Augu t 9 1974 the Engineer advised the Contractor of the Engineers concern over the poor rate of progress to date on the project and directed his attention to the fact that only 18 of the work had been completed as opposed to 37 lapse of the Contract period The Contractor was requested to advise the Engineer what steps were being taken to overcome this situation which nay delay completion beyond the Contract period

D-2

On August 13 1974 the Contractor replied to the Engineers letter of August 7 1974 stating the medical supplies were on the project at the time of the Auditors Report

On August 15 1974 the Contractor requested approval to rent a crushing plant from the AE Denovan Company of Zambia for use in producing surface course material

On August 19 1974 the Contractor submitted an updated construction progress schedule for approval

On August 30 1974 the Engineer transmitted to the Contractor additional guide lines for use in reporting Off Shelf purchases

On August 30 1974 the Engineer advised the Contractor of additional details required before escalation cost to P0L Products could be reinbursed to the Contractor

On October 3 1974 the Engineer transmitted plan and profile sheets for the Pandamatenga access road to the Contractor

On October 25 19 74 the Engineer advised the Contractor that the results of extensive test rolling on the sandclay base course material had determined that the sheepsfoot roller had given reliable compaction and requested the contractor acquire additional units in order to obtain the progress required on the project

On October 26 1974 the Contractor advised the Engineer of his intent to claim a time extension and additional costs due to his inability to achieve the required density with the equipment specified for the sandclay base course

On October 31 1974 the Engineer advised the Contractor thar his request for approval to rent crushing equipment from Dnovan of Zanbia was rejected because Denovan was considered from an ineligible source (935) country

On October 31 1974 the Contractor advised the Engineer that he would expect a change order be issued covering the cost of sheepsfo-t rolling equipment for use in compacting sandclay base course

On October 31 1974 the Engineer advised the Contractor that AID had approved an increase to $250000 limit on Off Shelf purchases The Contractor was also given new reporting procedures to be followed in all Off Shelf transactions

On October 14 1974 the Engineer rejected a revised version of the Contractors progress schedule and requested the Contractor to prepare a revised realistic workable schedule reflecting his experience to date on the project The Engineer requested to be informed in accordance withclause 46 part one of Conditions of Contract what steps were being vaken in order to accelerate progress and complete the project on schedule

On November 6 1974 the Contractor presented a revised version of the progress schedule stating that full consideration had been given to delays and experienced gained to date on the project He stated the Contractor ray have been over optimistic when preparing the previcus schedule The revised schedule provided for a completion date 6f31 August 1976 or 129 days beyond the Contract period The Contractor also listed additional construction equipment provided in an attempt to accelerate the progress

D-3

On November 12 1974 the Engineer rejected the latest revised progress and again requested the Contractor to present any claims with support details to Justify the time extension for completion of the project in accordance with clause 44 of Conditions of Contract

On November 20 1974 the Contractor wrote the Engineer concerning the claim for escalation cost involved in the rise to mininan wage rates in Botswana

On January 13 1975 the Engineer advised the Contractor of the reasons for several grade changes made to date on the projectIn most cases (rock excavation) the changes were made at the Contractors request and were to the advantage of the Cotractor

On Pebruary 27 1975 the Engineer made reference to previous correspondence concerning poor construction progress and advised the Contractor that progress continues to fall further behind that of the approved schedule each month The Contractors attention was directed to clause 14 (2) Conditions of Particular Application and he was again requested to submit in writing his plan for accelerating the work The Engineer again urged the contractor to submit claims under which he felt entitled to extension of time along with full and detailed particulars bf the claim in accordance with clause 44 extension of time for completion

On March 31 1975 the Contractor answered TAMS letter dated 27 February 1975 concerning progress on the project T-he Ccrracaor outlined his program for improving progress particularly in the surface course operations

On May 2 1975 the Contractor clarified some points raised by USAID Auditors repecting Off Shelf purchases

On June 9 1975 the Contractor was instructed to install additional CMP culverts at locations designated where drainage proble-s had occurred during the past rainy season

On June 12 1975 the Contractor advised of difficulties experienced in securing Resident Permits for expatriate employees

On August 5 1975 the Engineer returned a revised construction progress to the Contractor for minor corrections

On September 1 1975 the Contractor was given the colour schee for all roadway signs to be installed on the project

On September 25 1975 the Contractor wrote to the Engineer about the source and origin of the two Ford county tractors imported to the job site for use in compacting the sandclay base course

On October 6 1975 the Engineer advised the Contractor that all details of the Ford County farm tracto-s had been sent to theChief Roads Engineer for a ruling from REDSO on eligibility of this equipment for use on the project

On October 6 1975 the Engineer wrote the Contractor concerning the revised construction progress schedule submitted for approval on 24 September 1975 and resubmitted on 8 September with changes The Engineer informed the Contractor the schedule was accepted with the provision that acceptance should in no manner be construed as an approved time extension Further the Engineer advised the Contractor that the question of approval of a time extension could only be resolved after the Contractor presented his claim with detailed particulars to support the claim The Engineer requested the Contractor to submit his claim with supporting details in accordance with the provisions of the Contract

D-4

October 6 1975 the Engineer transmitted three detailed copies of the construction progress chart compiled from the latest revised construction progress schedule presented on the 8 September 1975 The Contractors attention was directed to the fact actual progress had already fallen 5 behind the new schedule during the first two months the schedule was in effect The Engineer requested the Contractor to present in writing his plan for improving progress in order to complete the work within the time shown on the latest revised schedule Clause 14 Conditions of Particular Application from the Contract Documents was quoted to the Contractor as the basis for this request

On October 8 1975 the Engineer requested details on the water wells onthe project drilled and cased by the Contractor which the Governmentof Botswana is interested in purchasing from the Contractor

On November 14 1975 the Contractor submitted his claimsCS-1 through CS-10 requesting time extensions amotnting to 284 days andadditional cost in the annunt of $215361620

On November 21 1975 the Contractor wrote to the Engineerconcerning reimbursement of Custons and Excise duties being imposed on POL Products for use on the project

On Iember 19 1975 the Engineer advised the Contractor that to date well in excess of 100 kilometers of roadway had beensubstantially completed However the drainage ditches had not beerful-y

completed in accordance with plans and would not function as intended Therefore any damages likely to accUr during this rainy season would be repaired at the Contractors expense

On December 22 1975 the Engineer notified the Contractor that the kilometer posts delivered for inspection did not conform to the post design and a list of deficiencies were noted

On January 21 1978 the Contractor notified the Engineer of his intent to claim a time extension and additional cost due to private traffic use of the newly completed sections of the project

On January 27 1976 the Engineer advised the Contractor that it was the contractors responsibility to post signs barricadesand watchmen to keep the public traffic off the new roadway thereforein the engineers opinion no valid grounds exist to support a claim

On February 5 1976 the Contractor reauested that approximately 120 kilometers of roadway be accepted for public traffic

On February 9 1976 the Engineer informed the Contractor that he had no objection in principal to the request for acceptance of 120 kilometers of roadway however the road had not been satisfactorilycompleted A list of deficiencies existing in this section was given the Contractor

On March 11 1978 the Contractor submitted the sixth revised construction progress schedule projecting a completion date on December 31 1976

D-5

On March 24 1976 the Engineer informed the Contractor that the 6th revised schedule was accepted with the provision clearly understood that acceptance of the schedule should in no manner be construed as an approved extension of time

On April 5 1976 the Contractor formally requested an increase to the limitation of $250000 on purchase of Off Shelf spares

On April 5 1976 the Contractor notified the Engineer that he was unsuccessful in locating a sub-contractor to augment the crushing operation for surface material

On April 12 1976 a detailed punch list of deficiencies was transmitted to the Contractor covering the section of the road from km 167 to km 290+500

On June 25 1976 the Contractor advised the Engineer of his intent to claim added cost and delay in connection with delay in reimbursement of duties paid on POL products by the Contractor

On July 28 1976 the Engineer instructed the contractor concerning slope protection to be provided in certain areas along the new road between Nata and Kazngula

On August 3 1976 the Contractor requested clarification on local currency portion of his monthly progress payments after the Botswana Pula officially replaces South African Rand as legal tender in Botswana

OnAugust 18 1976 the Engineer advised the Contractor that his request for a waiver on source and origin for the two Ford tractors had been refused by USAID therefore no reinbursement from AID Loan Finds could be effected

On October 15 1976 the Contractor was given a list of special ditches to be constructed on the Chobe By-Pass road

On November 15 1976 the Contractor was given a list of additional culverts to be installed on the Chobe River By-pass road

Of November 25 1976 the Engineer requested additional information concerning the Contractors claims CS-I through CS-10

On January 15 1977 the Contractor confirmed the list of dificiencies to be corrected before a certificate of acceptance for the road would be issued

On January 19 1977 a Certificate of CompletionL was issued to the Contractor and the six months maintenance period connenced

On February 25 1977 the Contractor submitted claims CS-7 supplement throug CS-10 supplerent inclusive and CS-I1 requesting extension of time (26 + days) and reimbursement of additional cost in the amount of $217384091

On February 25 1977 the Contractor submitted claims CS-7 supplement through CS-10 supplement inclusive and CS-i1 requesting additional extension of time and reimbursement of additional cost in the amount of $217384091

Note As evaluation of the Contractors claims continues there has been considerable correspondence between the Contractor and the Engineer Upon resolution of the claims a supplemental report will be issued

D-6

I I IUUU U U UU I U

E PROJECT PHOTOGRAPHS

I IIIU U I

I Crushing Plants Surface Course

Pit 2A

Pug Mill Blending Surface Course

Pit 25A

II Surface Course

Pit 25A

UURYPTOERTOSE Pug Mil Blending

Road Reserve Bush Clearing

Km 242

U

Embankment Construction Km 287

IN

Road Construction Water Supply

Km 189

ROADWAY UNDER CONSTRUTION

II

E-2

Stockpiling Material Base Course

Special Embankment Construction Km 232

Watering of Embankment Km 257

ROADWAY UNDER CONSTRUCTION E-3

Culvert Assembly

Twin Culvert with Sand-Cement Pitching

Multiple Culverts with Sand-Cement Pitching

CULVERT INSTALLATIONS E- 4

AT Km 25

AT Km 194

Emergency Landing Strip Kra 2605

FINISHED ROADWAY E- 5

AT Km 286

AT Chobe By-Pass Junction Km 297

I Chobe By-Pass Road Near Ngoma Bridge

E-6FINISHED ROADWAY

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